How can a man go eight days without sleep?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

O_er_t_o_

Complete the missing letters of the given word.

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

Rearrange the letters in "new door" to make one word.

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

Can you find out which options fits best with the missing column?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?

Take away the whole and some still remain. What is it?