Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

What is the riddle which can be asked all day with a different correct answer each time.

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

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

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

What does this simple rebus mean?

Can you count the number of matches in the picture below ?

Find the missing number in the sequence.

3 5/3 7/5 11/7 ? 17/11

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?

Here is a Swiss Cross. You have to make two straight cuts in the figure so that it is divided into four congruent pieces. Also, you should be able to join these pieces into a square then. Can you accept this challenge?