What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

A generous owner of a company decided to give a bonus of $45 to every man and $60 to every woman on his birthday. But only one-ninth of the men and one-twelfth of the women were present to take the bonus.

Can you calculate the amount of money the owner spent if there were 3552 employees?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

What can you deduce from the following BrainBat?

CRY
LMKI

How many letters are in the alphabet?

One evening there was a murder in the home of a married couple, their son and daughter. One of these four people murdered one of the others. One of the members of the family witnessed the crime.

The other one helped the murderer.

These are the things we know for sure:

1. The witness and the one who helped the murderer were not of the same sex.

2. The oldest person and the witness were not of the same sex.

3. The youngest person and the victim were not of the same sex.

4. The one who helped the murderer was older than the victim.

5. The father was the oldest member of the family.

6. The murderer was not the youngest member of the family.

Who was the murderer?

Why is it very easy to weigh a fish?

Which digit occurred maximum times between the number 1 and 1000?