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3 Tricky Brain Teasers – Can You Solve?

Q1. Sameer purchased a mobile for $600, sold it for $800, bought it back again for $900, and sold it again for $1000. How much profit did he make?

Q2. If A x B = 2, C x D = 12, B x D = 3, and B x C = 4, what does A x B x C x D equal?

Q3. Two boys are writing an exam. They are identical. They have the same mother, father and birthday.

They were asked, “Are you twins?” they simply answer, “no, we are not”. How is this possible?

Give Your Answers in the Comments Section – Click Here

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135 Responses to 3 Tricky Brain Teasers – Can You Solve?

  1. ABBAGANA M ABATCHA November 26, 2012 at 7:57 PM #

    300
    24
    Triplet

    • Ali - Admin November 28, 2012 at 7:14 PM #

      Great!
      You got them all right.

  2. Sameh November 26, 2012 at 7:51 PM #

    1. $300
    2. 24
    3. different years birthday

  3. Moktadir November 26, 2012 at 6:37 PM #

    1. $100
    2. 24 = AxB=2 x CxD=12
    3. Different years? Writing an exam–who was asking them?

  4. Syed November 26, 2012 at 6:04 PM #

    1) $100
    3) Identical but date of birth is not same.

  5. hazem November 26, 2012 at 5:33 PM #

    1.zero profite
    2. 24.
    3. different year’s birth

  6. Qutubudeen November 26, 2012 at 5:20 PM #

    Q1 $200
    Q2 24
    Q3 not same year

  7. noura November 26, 2012 at 5:05 PM #

    1- 300
    2- 24
    3- Not in same year

  8. yassin November 26, 2012 at 4:56 PM #

    1- Profit = Total Sale – Total Purchase = (800+1000) – (600+900)= 300
    2- A X B =2 , C X D = 12 , AXBXCXD=24
    3- Not necesserily the same year

  9. Shoaib Iqbal November 26, 2012 at 3:54 PM #

    Zero profit
    24
    different birth year =)

  10. shady November 26, 2012 at 3:44 PM #

    profit=300$
    A*b*C*D=24
    not the same year

  11. abidali November 26, 2012 at 3:23 PM #

    1. Profit 300$
    2. 24
    3. they have different year of born of same date

  12. Moreino November 26, 2012 at 3:18 PM #

    1.sameers profit is $200
    2.A x B x C x D = 24
    3.they aren’t twins coz they were born on different years

  13. Sameer November 26, 2012 at 3:17 PM #

    A1. 200
    A2. 24
    A3. Birthday is same but may be another year

  14. T.A.Mehdi November 26, 2012 at 3:10 PM #

    1.) $400
    2.) 24
    3.) Brothers were born in different years.

  15. Dr. Samir November 26, 2012 at 2:29 PM #

    1- 300
    2- 24
    3- They are Twin

  16. Babiker November 26, 2012 at 2:28 PM #

    a) 300
    b) 24
    c) they are triplet

  17. Dr. Samir November 26, 2012 at 2:28 PM #

    1- 300
    2- 24
    3- Twin

  18. Babiker November 26, 2012 at 2:26 PM #

    a 300
    b 24
    c they are triplet

  19. Soumen Roy November 26, 2012 at 2:23 PM #

    $300 profit
    2*1*4*3=24
    year is different.

  20. sahar November 26, 2012 at 2:12 PM #

    1. zero profit
    2.a 1 b 2 c 3 d 4
    3. differnet year

  21. Ibnkako November 26, 2012 at 2:08 PM #

    1- $400, Invested $600 finally in pocket $1000
    2- 24
    3-triplets

  22. Syed A K November 26, 2012 at 1:57 PM #

    $300, different years

  23. samina wajeeh November 26, 2012 at 1:57 PM #

    300
    24
    Coz time/ year change

  24. Abbasi November 26, 2012 at 1:17 PM #

    1) $300
    2) 24 (A=2, B=1, C=4, D=3)
    3) They are triplets!

  25. tarek shaker November 26, 2012 at 1:06 PM #

    1-His profit is 300$
    2-A=2, B=1, C=4 & D=3
    3-They were born in different years

  26. kami November 26, 2012 at 12:59 PM #

    300$
    24
    Different year

  27. Abbas November 26, 2012 at 12:49 PM #

    1.He earned 200$
    2. 10
    3. different bous with the common father & mother name & also the same date of birth

  28. Khaled El Zubi November 26, 2012 at 12:48 PM #

    1- No profit, Zero Dollars gained. ($200 profit – $300 lost + $100 profit= zero dollars).

    2- A*B*C*D=2*1*4*3=24

    3- They are brothers, but not twins. They born in same day and month, but different year.

  29. ali November 26, 2012 at 12:47 PM #

    1- Zero
    2- 24
    3- one cheat from the other

  30. Azeem Khalid November 26, 2012 at 12:44 PM #

    1. $100 (Initially he purchased mobile for $600 which means his Capital Investment was $600 and sales it for $800 then his profit becomes $200, but now he purchases it back which means his Total Present Capital Investment (including his previous profit) is $900, and he sales it for $1000, so Finally, his profit becomes $100 of the total Business he did.
    2. A x B x C x D = 2 x 1 x 4 x 3 = 24
    3. Because Birth year is not same

  31. sk ashif November 26, 2012 at 12:43 PM #

    $300, 24, different years

  32. Mohamed November 26, 2012 at 12:25 PM #

    1- 200 +100 = 300$
    2- AXB = 2 CXD = 12 AXBACAD = 24
    3- they are brothers born in diffrent years

  33. Famu November 26, 2012 at 12:23 PM #

    1. No Profit
    2. 24
    3. No Idea ( May Be different Year)

  34. Richy November 26, 2012 at 12:22 PM #

    1- 0$
    2- 24
    3- THE SAME BIRTHDAY OF A DIFFERENT YEAR

  35. abdul waheed November 26, 2012 at 12:21 PM #

    #400 24 may be triplet

  36. Umer November 26, 2012 at 12:17 PM #

    1. Profit gained is $200
    2. A X B X C X D = 2 X 1 X 4 X 3 = 24
    3. They might have similar answers to the exam questions

  37. ahmed November 26, 2012 at 12:15 PM #

    1.$300
    2. ?
    3. Different year

  38. Sayed Dawood Hashimi November 26, 2012 at 12:11 PM #

    1. USD $300 (for the first time his profit is $200 and for the last time his profit is $100 so the total profit is $300)
    2. 24 (2*1*3*4)=24 “A=2, B=1, C=4, D=3”
    3. They have the same mother and father, but not the same born year therefore they are not twins.

  39. shabbirasifa November 26, 2012 at 12:08 PM #

    1: $200.

    2: A=2, B=1, C=4, D=3. TOTAL. =24.

    3. Because mother and father are same, they may be identical but with same birthday of different year.

  40. ibrahim ahmed November 26, 2012 at 12:02 PM #

    1.200$
    2.A=2,B=1,c=4 and D=3
    3.not clear

  41. Amanullah Khan November 26, 2012 at 12:00 PM #

    1. $300. He made a profit of $200 on first deal and $100 on the second one. Alternatively, he invested $700 (600+100 for the second) and ended up with $1,000.

    2. (AxB)x(CxD)= 2×12= 24

    3. Identical brothers, born on the same date in different years.

  42. Rishad November 26, 2012 at 11:58 AM #

    1. USD 300 (800+1000-600-900)
    2. 24
    3. Born in different year

  43. maher sultan November 26, 2012 at 11:53 AM #

    1- no profit
    2- A=2, B=1, C=4, D=3
    3- born on same birthday but different years

    • maher sultan November 26, 2012 at 11:55 AM #

      2- 2*1*4*3= 24

  44. Abdel November 26, 2012 at 11:52 AM #

    1- 100
    2- 24
    3- not the same year.

  45. maher sultan November 26, 2012 at 11:52 AM #

    1- o profit
    2- A=2, B=1, C=4, D=3

  46. Abu Ahmed November 26, 2012 at 11:45 AM #

    1- $200.
    2- A =2, B =1, C =4 & D =3.
    3- Different years.

  47. armutyus November 26, 2012 at 11:45 AM #

    1.300
    2.24
    3. I think if they are not twins, they are triplets.

  48. Arif Khairuddin November 26, 2012 at 11:44 AM #

    a 300
    b 24
    c Only if their birth year is different

  49. Mubarek.alamin November 26, 2012 at 11:41 AM #

    😛

  50. Juned Ansari November 26, 2012 at 11:40 AM #

    1. USD 300 profit
    2. 24
    3. They were born in different year