Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

A couple went on a climbing trip. But only the husband returned from the vacation and said that his wife slipped off while climbing and died. On investigating, the local sheriff arrested him saying, 'Your travel agent called. You murdered your wife.'

The man did not inform anyone about the trip. Then how was the agent so sure that it was a murder?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

Our product and our sum always give the same answer. Who are we?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What two things can you never eat for breakfast?