What is the riddle which can be asked all day with a different correct answer each time.

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

People make me, save me, change me, raise me. What am I?

Rearrange the letters in "new door" to make one word.

Count the number of triangles in the picture below:

1. Where does Easter come from before Valentine's Day?

2. Do you know what is in the middle of Valentine's?

3. What did the lady bee say to the man bee on the occasion of Valentine's Day

How is the moon similar to a dollar?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Prove that the below maths equation is true.

8 + 8 = 91