I’m tall when I’m young, and I’m short when I’m old. What am I?

If you say my name, I will no longer exist. What am I?

Can you solve this picture maths equation?

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?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Solve the following series:
AZ, GT, MN, __, YB

How can one talk without saying a single word?

When is the top of a mountain similar to a savings account?

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?

What is 3/7 chicken, 2/3 cat and 2/4 goat?