Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

Name a key which is hardest to turn.