What has a ring but no finger?

Name a key which is hardest to turn.

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

Why is a river so rich ?

I am sure no one can have two things for dinner. what are they?

A bomb exploded in a room full of married couples and no one died. How?

Why is 6 afraid of 7?

The Little ant seems to be always confused. Do you know why?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

Which Travels Faster? Solve below famous picture riddle: