What has lots of eyes, but can’t see?

I have an eye but still cannot see.

Who am I?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

what does this below rebus represent identXQQQQQME

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

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

What Adam and Eve do not have but the rest of the people have?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?