Best riddles

A frog is at the bottom of a well. It is a 30 foot climb to get out. Each morning, the frog jumps 3 feet up the path out, but each night, as it sleeps, it slips back 2 feet down. Thus, at the beginning of the first day, the frog has 30 feet to go, at the beginning of the second day it has 29 feet to go, and so on. How many days does it take the frog to get out of the well?

I cannot be felt, seen or touched, yet I can be found in everybody. My existence is always in debate, yet I have my own style of music.

What is it that when you take away the whole, you still have some left over?

I can sizzle like bacon, I am made with an egg, I have plenty of backbone, but lack a good leg, I peel layers like onions, but still remain whole, I can be long, like a flagpole, yet fit in a hole. What am I?

An iron horse with a flaxen tail. The faster the horse runs, the shorter his tail becomes. What is it?

Branches grow on its head; it wears spotted clothes. Not a donkey of a horse, it runs like the wind.

I move very slowly at an imperceptible rate, although I take my time, I am never late. I accompany life, and survive past demise, I am viewed with esteem in many women's eyes. What am I?

There are ten people in a house. Everybody wants to make a hand shake with only people shorter than themselves. Assume everybody is different in height. How many hand shakes are made?

A couple went on for 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 did the agent was so sure that it is a murder?

What is a tree's favorite drink?