Answer:
A metal snake that runs on tracks.
David's father has three sons: Snap, Crackle and?
Santa's favorite entrance for home invasion
If four people can repair four bicycles in four hours, how many bicycles can eight people repair in eight hours?
Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. Who am I?
I am the same written forward backward and upside down.