questioning
noun
a request for information
Synonymsinquiring
adjective
perplexed (as if being expected to know something that you do not know)
“he had a quizzical expression”
Synonymsquizzicalmarked by or given to doubt
“a skeptical attitude”
“a skeptical listener”
showing curiosity
“if someone saw a man climbing a light post they might get inquisitive”
“raised a speculative eyebrow”
Source: WordNet 3.1, Princeton University