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

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

There is something which is always coming but never arrives?

What goes up but never comes down?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What two things can you never eat for breakfast?

John leaves home and then he takes three right turns. John wants to return to home but he was scared of Jacob, who is wearing a mask.

What is John Situation ?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?