Complete the table series riddle by finding the number that can replace "??".

Decode below rebus
D
N
A
T
S , D

How can a man go eight days without sleep?

Can you replace the question mark with the correct number in the below table sequence?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Which flower has two lips?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Why Aeroplane windows are round?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.