<human>:  When a person is being questioned by the police, can they refuse to answer questions?
<bot>: The Fifth amendment states that a person cannot be compelled to be a witness against themselves. However, if a person is being interrogated by the police, and they are asked to answer questions, then they are not allowed to refuse to answer them. The reason for this is that the police have a legal right to ask questions, and a person has no legal right to refuse to answer them.