I believe it's inquisitive, or cynical.
A person who asks many questions is inquisitive. If they are asking too many questions that are personal they are called nosey in American English. (insulting usage)
horny.
"Pestering a person with questions" or "grilling someone with questions" could describe someone who asks a lot of questions to the same person.
An inquisitive one
20 Questions is a game where you think of a thing (either a person, place, thing, animal, etc.) and the other person can ask you 20 questions about it to try and guess what you are thinking of. For example: You think of spider The first question your partner asks is: Is it a person? You answer: No Then your partner asks: Is it an animal? You answer: Yes Then your partner asks: Is it a mammal? You answer: No And so on...
The person who asks the questions at a debate is called the moderator. Their role is to facilitate the discussion, keep speakers on track, and ensure that the debate runs smoothly.
They call Antonio "The Inquisitor" because he asks so many questions.
The person would be inquisitive or curious.
The money that a kidnapper asks for to release a person is commonly referred to as a ransom.
A child who asks many questions can be described as "inquisitive". This has a positive connotation. Badgering or pestering also describe describe a person who asks many questions. This has a negative connotation.
100
A Skeptic person