What is the funniest joke?

"Funny" is an adjective that can only be defined to a noun by opinion.

It would be wrong to say that there is a "funny" joke that appeals to all - as different people have different perspectives of "funny".

What do you call a fish with no eyes?

a fsh.

My dog has no nose.

How does he smell?

Awful.

Two fish are swimming and they crash into a solid cement wall.

One turns to the other and says "dam"!