Since Jesus recognized their deception, he said to them, "Caesar's," they replied.
"Show me a coin. Whose image and inscription does it have on it?"
References for Luke 20:24
He said to them, "Give to Caesar what belongs to Caesar and to God what belongs to God."
They couldn't trap him in his words in front of the people. Astonished by his answer, they were speechless.
Some Sadducees, who deny that there's a resurrection, came to Jesus and asked,
References for Luke 20:27
"Teacher, Moses wrote for us that if a man's brother dies leaving a widow but no children, the brother must marry the widow and raise up children for his brother.
References for Luke 20:28
Now there were seven brothers. The first man married a woman and then died childless.
and then the third brother married her. Eventually all seven married her, and they all died without leaving any children.
Finally, the woman died too.
In the resurrection, whose wife will she be? All seven were married to her."