What goes up but never comes down?

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

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

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.