John was piloting a plane behind a car but was never able to overtake it. Why?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

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

What has 88 keys?

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

What is the fastest way to double your money?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?