Replace the question mark with the number below given a simple math problem.

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?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

Where do fish keep their money?

A person was killed at a house party. When the police arrive, there are six people present in the house who are the friends of the victim. The name of the friends is Rohit, Aman, Nick, Gagan, and Randy.

Near the dead body, they find a few numbers written with blood by the victim on the floor. The numbers are 8, 5, 4, and 11.

The police arrests one of the friends for the murder. Whom did they arrest and why?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

What can you hold in your right hand, but never in your left hand?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

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

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?