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

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

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

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

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?