Can you write down eight eights so that they add up to one thousand?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?

Why is 6 afraid of 7?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

Why did the Girl throw the butter out of the window?

I don't get anymore wetter, no matter how much rain falls on me.

A man dies of old age on his 25 birthday. How is this possible?