There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

2, 3, 5, 9, 17, _ What is the next number in the sequence?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?

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 ?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

Why is the longest human nose just 11 inches?