How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

What building has the most stories?

Count the Triangle in the figure given below:

Replace the question mark with the correct number in below Picture:

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

What is the next number in this matchsticks series riddle?

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

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?