If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

Find the missing number in the image below.

If a wheel has 54 spokes, how many spaces are there between the spokes?

Why is Saturday stronger than Monday?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Which tank will fill first?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?