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

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Which part of London exists in France as well ?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?