Tic, Tac and Who

Peter's mother has three kids. The oldest two are named Tic and Tac.
Q: Who is the third?
A: Peter!

Hope

The fact that jellyfish have survived for 650 million years despite not having brains gives hope to many people.

New Password

I changed my password to "incorrect" 
Now when I type it wrong my computer will tell me "your password is incorrect"