Riddle:

A man had a bar of lead that weighed 40 lbs., and he divided it into four pieces in such a way as to allow him to weigh any number of pounds from one to forty. What are the weights of the four pieces?

1, 3, 9, 27, are the weights of the four pieces.

Riddle:

Ripped from my mother's womb, Beaten and burned, I become a blood-thirsty slayer. What am I?

Iron ore.

Riddle:

I heard of an invading, vanquishing army sweeping across the land, liquid-quick; conquering everything, quelling resistance. With it came darkness, dimming the light. Humans hid in their houses, while outside spears pierced, shattering stone walls. Uncountable soldiers smashed into the ground, but each elicited life as he died; when the army had vanished, advancing northward, the land was green and growing, refreshed. What is it?

A rainstorm.

Riddle:

There once was a book that was only owned by the wealthy, but now everyone can have it. You can't buy it in a bookstore or take it from a library. What book is it?

A telephone book.

Riddle:

Why is a bullet like a tender glance?

Because it pierces hearts.

Riddle:

A fireman is running to get a net under a lady who looks like she might jump off the balcony of her 20 story apartment building. There is nothing below her except a 20 story fall. The fireman is still 100 yards away when she falls and can't nearly get there in time. The woman is not hurt more than a bruise. How is that possible?

She fell back into her apartment, jumping from the balcony into the inside.

Riddle:

What is that which the dead and living do at the same time?

Lie.

Riddle:

A new medical building containing 100 offices had just been completed. Mark was hired to paint the numbers 1 to 100 on the doors. How many times will Mark have to paint the number nine?

The answer is 20! 9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99.

Riddle:

Why is the obtuse angle always cranky?

Because it is never right!

Riddle:

There are two numbers whose product added to the sum of their squares is 109, and the difference of whose squares is 24. What are the two numbers?