Can anyone tell me a word in the English dictionary which has a silent 'z'?

There is something which is always coming but never arrives?

I have teeth but i don't bite. Who Am I ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

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

Can you name some countries which do not have the alphabet 'A' in them?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?