What has many keys but can’t open a single lock?

Forwards I am heavy, backward I am not. What am I?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.

How will John escape?

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

Why Wine Glass Stem is so long?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

By using 'because' continuously three times, can you make an English statement ?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair