As a Sunday School teacher I am frequently asked by my pupils whether Jesus had a sense of humor. There is, naturally, no real proof one way or the other, but I usually fall back on citing one or two well-known instances when Jesus apparently intentionally made a pun.
Eckler, Faith W.
"Jesus, the Punster,"
Word Ways: Vol. 3
, Article 8.
Available at: http://digitalcommons.butler.edu/wordways/vol3/iss3/8