This is an old, standard puzzle, but not everyone has had a chance to try it. Will you be able to work it out?
Peter's father has five sons.
Four of the boys are named Dada, Dede, Didi and Dodo.
What is the name of the fifth son?
The temptation is to continue the sequence of vowels and arrive at the name Dudu, but that would be wrong!
The very first word of the puzzle tells you that the name of the fifth son is Peter.