It is possible that UFOs exist.
Inserting a rod into the reactor turns it off.
I would never let a garbanzo bean in my mouth.
Nobody has ever seen them directly, but everyone says they exist.
You take it to the Moo-seum. I know this joke is terrible, but I totally came up with it on my own, but I'm sure it exists already.
A: There have been sightings of UFOs.
You keep hearing about em but you never see em
All three of them.