How does one stump Jesus?

In Mark 12 there were many who were trying to get Jesus to stumble over His words. I love the fact that Jesus turns the tables on them every time. I can just imagine Jesus not even raising His voice while responding to their ploys, just in a matter of fact voice responding. I can even see the people's faces as He responds, like "Alright, what now?" Also in Chapter 12 is another glorious parable of the wicked tenants. In which, Jesus sets a trap of sorts for the leader's challenge of Jesus' authority. This is another attempt to get Jesus to stumble over His words, but He is very clear in His accusation of who the wicked tenants are in this parable without pointing fingers.