If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What does below chemistry rebus means?

What has a bottom at the top?

If your uncle’s sister is not your aunt, what relation is she to you?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Can you count the number of triangles in the picture below?

What is the difference between a jeweller and a jailer?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

Do you know who was buried in John's tomb?