Check out this video on April Fools Math! The content is about Complex Numbers. Really funny. ðŸ™‚ Over a million views!

Also, check out this post on Math Jokes:

https://mathtuition88.com/2014/03/08/math-jokes/

Also, we have a series of Best Fake Proofs on Math Stackexchange:

What went wrong?

Amazing Endless Growing Chocolate! Can you spot the magic?

Math Jokes 4 Mathy Folks