John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

A man dies of old age on his 25 birthday. How is this possible?

Can you decipher the below rebus?

PBLUESAISNUERSES

What does below Rebus say?

XLR8

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

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?