Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

What jumps when it walks and sits when it stands?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

They are three errirs in this question. Can you find them?