You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Can you find the thief by just looking at the picture below?

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

What demands an answer, but asks no questions

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

What goes up but never comes down?

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?