The planet will survive. Whether we get to be here and enjoy it, or enjoy life as we've known it, is what's questionable.
That questionable superfluity small beer.
It is important to have questionable friends you can trust unconditionally.
Natural talent is a questionable phenomenon. Inclination perhaps, but innate ability is extremely rare.
The great thing about 'Allen Gregory' is that we try to make it really questionable that the things he says have happened, have really happened. We like that ambiguity.
I always love seeing what worries you. Strigoi? No. Questionable food? Yes.
Whatever we think about and question a lot becomes questionable.