Replace the question mark with the correct number below.

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

I look at you, you look at me, I raise my right, you raise your left. What am I?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Who can jump higher than a Mountain?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.