Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

What has 88 keys?

Give it food and it will live; give it water and it will die.

Steffi's daughter Jazelle needs to be picked up from school every day.
Steffi asks one of her colleagues to pick up Jazelle from the school. Steffi devised a password system to confirm that Jazelle goes with the correct colleague only.

The password on Monday was SJM16.
The password on Wednesday was TAW39.

What will the password be for Friday?

Can you make a fire with just a single stick?

What building has the most stories?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

A boy collects white seashells from the sea and brings them home every night. When he has enough of them, he decides to sell them to a trader.

The trader is ready to buy the shells and he asks the boy about the quantity. At this, the boy starts calculating. He has a giant box that contains 3 mini boxes. Two of them have another mini box inside. If the giant box can hold 50 shells, how many brown shells can he sell to the trader?