Definition of question verb from the Oxford Advanced Learner's Dictionary
question
verb
ˈkwestʃən ˈkwestʃən
1question somebody (about/on something)| + speechto ask somebody questions about something, especially officiallyShe was arrested and questioned about the fire.The students were questioned on the books they had been studying.Over half of those questioned said they rarely took any exercise.2to have or express doubts or suspicions about somethingquestion somethingI just accepted what he told me. I never thought to question it.No one has ever questioned her judgement.question whether, what, etc…He questioned whether the accident was solely the truck driver's fault.
ˈkwestʃən 
ˈkwestʃən 
1 question somebody (about/on something)| + speech to ask somebody questions about something, especially officiallyShe was arrested and questioned about the fire.The students were questioned on the books they had been studying.Over half of those questioned said they rarely took any exercise.