Redirect all URLs with question mark (?) to original URL using redirection plugin

I have thousand of URLs with a question matrt at the end in the Search Console. I have no idea where did they come from.

I want to redirect all such URLs to the original URL

Example:

https://example.com/mac-keyboard-shortcuts-symbols-pdf/?

to

https://example.com/mac-keyboard-shortcuts-symbols-pdf/

Anybody help, please?

I tried solutiuons given here: Redirect question mark URL to the original URL

But it didn't work.