Is it really 50 to 50?

Yes. And the wheel has no memory: after five noes, the chance of a yes is still one half.

The wheel is on screen in front of everyone, keeps a history of the answers, and does not roll under the sofa.

Can several questions go one after another?

Yes, as long as removal is off. Each question is asked afresh.

The two segments take exactly half the circle each. Add a third “maybe” segment if you like — that makes the odds one third apiece.

Other pairs work the same: now or later, me or you, in or out — enter the pair you want and click Save.
Three “yes” segments against one “no” give 75 to 25.

Two entries mean 50% each, exactly like a tossed coin.
“Yes, Yes, No” makes three sectors: Yes gets 2 ÷ 3 = 66.7%, No is left with 33.3%.
The tilt comes only from how many times an option is written — there is no weight setting.

The same tool, a different job:

Enter the options in the field, separated by commas or one per line.
Press ONCE for a single spin, or AUTO for a run of them.
Tick Remove the pick after each spin if you would rather what came up did not repeat.
Set Stop auto-spinning after and a number to limit the run.
With Save the list is written to the selected one — the line above the buttons says which. If none is selected yet, a list named after the page is created — Save never asks for a name.
With Save as new a second list is made without losing the loaded one. If the name is already taken, you are asked whether to replace the older one.
With Share you get a link that opens the same wheel on another device.

Every segment has an equal chance and the list stays in the browser — nothing is sent to a server.