An old auto is to drive a stretch of 2 miles, up and down a hill. Because the auto is so old, you cannot drive the first mile (the ascent) faster than 15 miles per hour.

How fast do you have to drive the second mile (going down the hill) in order to get an average speed of 30 miles per hour?

Once upon a time there was a beautiful princess named Anna. Anna’s father, the King, wanted to be sure his daughter married an intelligent man.

To test his daughter’s suitors the King hid Anna’s picture in one of three boxes. The suitor had to be able to select the box with Anna’s picture on one try and within twenty seconds.

The following messages were written on the boxes.

Gold box: Anna’s picture is in this box.
Silver box: Anna’s picture is not in this box.
Bronze box: Anna’s picture is not in the gold box.

The King would tell each suitor, “Only one of the three messages is correct.” Which box contained Anna’s picture?

I went to bed at eight o’clock in the evening and wound up my clock and set the alarm to sound at nine o’clock in the morning. How many hours sleep would I get before being awoken by the alarm?

“Life’s funny”, said an old friend when I bumped into him the other day. “Listen to this, I was born in March, yet I celebrate my birthday in August, and last February I married my mother”. How is this possible?

The Pharaoh asked: “Who is the greatest of the gods?”
‘I am not” said Horus.
“Anubis is” said Isis.
“Isis is lying”, said Anubis.
Only one god was telling the truth, the other two were lying. Who is the greatest?