Replace the question mark with the correct number.

Can you count the number of blocks in the picture below?

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

I am working in a bus company. The company recently went under expansion and therefore there was not enough room for all the buses. As a result, twelve buses had to be stored outside.

If the company decides to expand the garage space by forty percent, enough space to accommodate the current buses will be created leaving enough space for twelve more buses if the need arises in future.

Can you calculate the number of buses that the company owns at present?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

What does below chemistry rebus means?

How can a man go eight days without sleep?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?