If you multiply this number by any other number the answer
If you multiply this number by any other number the answer
Can you solve this tricky math riddle?
If you multiply this number by any other number the answer will always be the same.
What number is this?

ANSWER
Zero (0).
The math puzzle with two answers
1+4=5.
2+5=12.
3+6=21.
8+11=?

The two answers to the puzzle are 40 and 96.
If the answer is 40.
Solution
1+4=5.
2+5=7+5=12.
3+6=9+12=21.
11+8=19+21=40.
If the answer is 96.
1+4=5.
Then multiply the two numbers and add the first number to the product.
2+5 = (2×5)+2=10+2= 12.
The next is 3+6= 21= (3×6)+3 =18+3= 21.
Then 8+11= (8×11)+8= 88+8= 96.