I got a real stupid question on bicycles. What is it?

How many handle(s) does a bicycle have? Another one.

Technically a bicycle has two wheels (bi=two.) Legally, anything that is pedal-powered and has one to three wheels, and sometimes 4 wheels, counts as a bicycle. That does not mean a trike IS a bicycle, it only means a trike is treated as a bicycle under the law.

Wheels and names:

Uni-cycle = 1 "uni"

Bi-cycle = 2 "bi"

Tri-cycle = 3 "tri"

Quad = 4...

____

Regardless general shape and function it's still called a bicycle/e-bike/motorcycle/scooter

From a common sense view a bicycle has 2 wheels. 

From an engineering view there's 4 basic mechanical machines (lever, wedge, sphere and wheel) all other mechanical machines are just a combination of the 4 basic machines. So from an engineering view there can be numerous wheels in a bicycle.

Yep. A real stupid question.

You're 100% right.  That is stupid.  🙄

Bi - meaning two.  Binary: something made of two things or parts.  https://www.merriam-webster.com/dictionary/binary

Unicycle - one.

Bicycle - two.

Tricycle - three  

Unicycle: 1

Bicycle: 2

Tricycle: 3

And so on.

Depends on what kind of  bicycle it is.