"Siapa yang berani membuka pintu itu?"

Translation: Who dares to open that door?

[hikagesan]

"Who is brave enough to open that door?"

[Sjlver]

Yes, that would certainly be a valid translation.

Who dares to open that door? is also valid. I think there should be the "to" though (not simply "who dares open ...").

[StijnBreke]

Agreed, "to" is required to make this sentence correct in English.

[LouiseFischer]

agree and it rejected my "who is it that dares open that door" which I think was valid