My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Can you find the thief by just looking at the picture below?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

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

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?