Editing needed.
What does Tom do to make Mary angry? [?]
I think it was intended to be like that.
One of those confusing sentences similar to this one:
https://tatoeba.org/eng/sentences/show/6115874
Linking only because there's already a discussion there.
See #6115874 for discussion.
@AlanF_US
Are you suggesting that this one needs to be deleted as well?
Yes, or changed to "Does what Tom does make Mary angry?"
I'll delete it.
I assume that you think that the following also sound wrong to you.
Does what Tom eat cost a lot?
Does what Tom write earn him a lot of money?
etc.
eat
-->
eats
write
-->
writes
At first glance, they sound fine, but thinking about it, it does seem off.
But what do I know :p
> I assume that you think that the following also sound wrong to you.
> Does what Tom eat cost a lot?
> Does what Tom write earn him a lot of money?
Yes.
The replacements suggested by DJ_Saidez would work, though there are other possibilities.