What type of teacher doesn't fart in public?
A private tutor/tooter.
What do you call a dog that tells time?
A watchdog.
What do you call an hourglass with no sand in it?
A waist of time.
Everyone: What does NASA mean?
NASA's response: National Aeronautics and Space Administration.
Everyone: What does NASA mean?
Arinator's response: National Ariana and Space Ariana.
What's a chair's favorite snack?
Chair-ies or Cherries if that's how you wanna spell it .3.
1 + 1 = window.
Did you hear about the person who invented the door knocker?
He won a no-bell prize.