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

You can see it everyday, But cannot touch it at will. What is it?

I look at you, you look at me, I raise my right, you raise your left. What am I?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

What Does this text mean:

important=important

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?