What has a ring but no finger?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

Prove that twice of ten is the same as twice of eleven.

What country can make you shiver?

What has many teeth, but cannot bite?

What 5-letter word typed in all capital letters can be read the same upside down?

Why do people go to bed?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?