Playfair cipher

This is the link to the playfair cipher:

http://en.wikipedia.org/wiki/Playfair_cipher

You should first try to encrypt  the word "rabbit" with the keyword "playfair example" . REMEMBER: I=J ! 
You should get ELGIKBWI. Isn't this code cool?

A family

My daughter is twice as old as my son.
And I'm twice as old as my daughter.
In 22 years I'll be twice as old as my son.
How old is everyone in our family?

What color is the bear?

You start at a certain point. You go 20m. south, 20m. west, and 20m.north. You come to the same place where you started from. Then you meet a bear. What color is the bear?