Why did the photon bring a ladder to the bar?
Because it heard the drinks were on the house, and it couldn't resist climbing to new heights.
What did one black hole say to the other?
Nothing, they both knew that speech was futile as they swallowed the very fabric of conversation.
Did you hear about the time a cosmic ray walked into a particle accelerator?
It broke the speed of light restrictions, causing a multiverse ruckus and a ban on extravagant accelerations.
Why are quantum cats so terrible at hide and seek?
Because they either hide perfectly or are simultaneously both found and hidden, confusing their seekers to no end.