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

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

I have branches, but no fruit, trunk or leaves. What am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

The more you take me, the more you leave me behind.
Who Am I?

Why is the Hole below a Lock?

The more of this there is, the less you see. What is it?