Question...

[transio]

It would be a different story if the wheels powered the forward thrust or it was a car

Not necessarily. Some planes (like biplanes) can maintain lift even when the wings are stalled (no positive airflow) because they have huge props pushing large amounts of air over big wing surfaces. That wouldn't be a riddle, though, but an engineering problem. I'd be interested to see a biplane do a stalled 0mph take-off. That would rock!

[transio]

A conveyor belt would only spin the wheels twice as fast as the thrust would move the plane forward even without the wheels

I'm not sure if you're agreeing or disagreeing with me, but that's pretty much exactly what I said (or was trying to say).

[Bulldoggie]

here is the answer

Thanks for the link I could not word it better
And I was quoting Transio in agreement

[transio]

And I was quoting Transio in agreement

OK... upon rereading my post, I realized it was ambiguously worded, so I wanted to make sure.