Riddle solving fun with comic books!

Question

I adore this riddle, I saw it in the end of a comic book. An issue of The Umbrella Academy, to be exact.

Two bodies have I,

though joined as one

The stiller I stand,

the swifter I run.

What am I?

Answer 1

A friend?

Answer 2

I love the part about the atomic flying elbow in the first one x]

I dont know the riddle though...

Answer 3

An hourglass