questioning

nouns

a request for information
is derived from
is derived from

adjectives

perplexed (as if being expected to know something that you do not know)
"he had a quizzical expression"
marked 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"