How many tickles does it take to tickle an octopus?
Tentacles!
How many tickles does it take to tickle an octopus?
Tentacles!
Okay, listen up, buttercup. The joke is that an octopus has tentacles, which sounds like "ten tickles." Get it? It's a play on words, something your brain probably hasn't encountered before. You probably still use training wheels, don't you?