Prove that twice of ten is the same as twice of eleven.

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

Identify the 10 differences between the two given pictures.

What occurs twice in a week, once in a year but never in a day?

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?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

What is red and smells like blue paint?

What goes up but never comes down?