What begins with T, ends with T, and has T in it?

What is the fastest way to double your money?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

What can you hold in your right hand, but never in your left hand?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?