K

The letter K back when the Egyptians were learning about the alphabet.
They used think if we have a thing we can make it into something called a letter. The K used to look like this the Proto-Sinaitic.

For the Egyptians this was "kaf", the palm of a hand:

It became K.

It's quite odd. I know that, but that's what it looked like back in time. The letter K has evolved into something similar to our letter K.

This was the Phoenician K:

It's odd as well, its like its on its head jumping. 

And then finally the Greeks have changed it into this K.