Flap, Flep, Flip and Flop are related to each other, but not incestuously.

Among the four are Flap's mother, Flep's brother, Flip's father and Flop's daughter, and the oldest and the youngest are of opposite sex.

One is a different sex from the other three: who?

Since you told us that only one is a different gender than the other three, so then Flap's mother must be the same as Flop's daughter.

Flap's mother = Flop's daughter

Flap = male
Flop = male

Flep's brother is Flap and Flap's mother is Flip. Flip's father is Flop and Flop's daughter is Flip.

Flop = male + dad
Flip = female + mother and daughter
Flep = male + brother and son
Flap = male + son and brother

It says that the oldest and youngest are of opposite sex, but I haven't figured out a way to make that work. However, I can answer the question, which is who is the person of the opposite sex from the other three and that is Flip.

Posted by artemis on 2005-07-07 00:28:14