With the help clues provided in the image, can you find the 5 digit key?

How can you leave a room with two legs and return with six legs?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

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

Replace the question mark with the correct number in below Picture:

Name a key which is hardest to turn.

Why is 6 afraid of 7?