Staying silent is can be a wise thing:
“Even a fool who keeps silent is considered wise; when he closes his lips, he is deemed intelligent." - Proverbs 17:28 (ESV)
But a person’s silence can also be a sign of evil scheming:
“Then He said to them, “Is it lawful on the Sabbath to do good or to do evil, to save life or to kill?” But they kept silent." - Mark 3:4 (NKJV)
Beware when a person refuses to answer direct questions.
