2 Math Riddles – A Chance to Prove Your Intelligence ! #1
Guess The Word !

It is a 9 letter word – 123456789.
If you lose it you will die.
If you have 234, you can 1234.
56 is one type of disease.
89 indicates exact location & time
2 & 7 are same letter,
3 & 8 are same letter,
5 & 9 are same letter

#2
Guess The Number !

If
2 + 5 = 12
3 + 4 = 18
4 + 6 = 36
5 + 4 = 40
6 + 8 = 78

Then
7 + 9 = ?

15 Responses to 2 Math Riddles – A Chance to Prove Your Intelligence !

1. m December 17, 2014 at 11:25 PM #

heartbeat

2. hady December 17, 2014 at 9:18 AM #

6+8=78=(6+8)×6-6
7+9=105= (7+9)×7-7

3. Akhtar December 17, 2014 at 1:47 AM #

Heartbeat

195

• Akhtar December 17, 2014 at 1:48 AM #

105, not 195. Typo.

4. faumi December 16, 2014 at 8:44 PM #

105

5. usama December 16, 2014 at 5:09 PM #

105

6. Fatma December 16, 2014 at 4:07 PM #

I made a silly mistake in multiplication table of 7
correction is
7+9 = 105
7+9 = (7X6) + (7X9)= 42 + 63 = 105

7. Marwan December 16, 2014 at 3:57 PM #

Riddle 2: is 105
Solution:
2+5 ==> 2+5=7*2-2=12
3+4 ==>3+4=7*3-3=18
4+6 ==>4+6=10*4-4=36
5+4 ==>5+4=9*5-5=40
6+8 ==>6+8=14*6-6=78
7+9 ==>7+9=16*7-7=105

Riddle 1: was very close

8. Marwan December 16, 2014 at 3:52 PM #

Riddee 2: is 105

9. Jhash December 16, 2014 at 2:59 PM #

1. HEARTBEAT
2. 105

10. Idriss December 16, 2014 at 1:46 PM #

105 [(7-1+9)×7)]

11. Azoor December 16, 2014 at 1:26 PM #

1 – Heartbeat
2 – 99

12. Fatma December 16, 2014 at 1:20 PM #

Riddle 2:
7+9 = 114

Calculation method:
7 X 6 =42
added to 72 which is the result of
7 X 9 = 72

as
2+5 = 10 = (2X1) + (2X5)
3+4 = 18 = (3X2) + (3X4)
4+6 = 36 = (4X3) + (4X6)
5+4 = 40 = (5X4) + (5X4)
6+8 = 78 = (6X5) + (6X8)
7+9 = 114 = (7X6) + (7X9)

13. Fatma December 16, 2014 at 1:03 PM #

riddle 1: Heartbeat

• HAMZA December 17, 2014 at 2:13 PM #

7*9=63