They're too short to reach the controls of the plane.
A pilot, you racist.
Because if they did they would be Bagels
Houston, TX will once again reach 98 degrees.
Because he was reaching for a galaxy far, far away.
Because I said so.
They are both controlled by little green men.
A plane
A flat major
It's a puffin!
Sir. Groan worthy penguin jokes(https://allwrong.wordpress.com/2007/10/05/penguin-riddles/)