What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

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?

what does the below math rebus puzzle mean?

A sundial has the fewest moving parts of any timepiece. Which has the most?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

What two things can you never eat for breakfast?

What is always in front of you but can’t be seen?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?