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

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

I know a nine-letter word having only one vowel.
Do you ?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?