Question:
What do the numbers 11, 69, and 88 all have in common?
Answer:
They read the same right side up and upside down.
Try another Brain Teaser:
A thief was brought before a king to receive his punishment. The king, feeling merciful, asked the thief how he would like to die. The thief told him, and the king let him go. How did the thief wish to die?