From Monty Python and the Holy Grail:
Cast:
(V) Sir Vladimir
(King) King is Arthur, King of the Britains!
(W) 'Witch' woman
(P1,P2,P3) Peasants one, two and three
V: Tell me... what do you do with witches?
P3: Burn'em! Burn them up! (burn burn burn)
V: What do you burn apart from witches?
P1: More witches! (P2 nudge P1)
(pause)
P3: Wood!
V: So, why do witches burn?
(long pause)
P2: Cuz they're made of... wood?
V: Gooood.
(crowd congratulates P2)
V: So, how do we tell if she is made of wood?
P1: Build a bridge out of her!
V: Ahh, but can you not also make bridges out of stone?
P1: Oh yeah...
V: Does wood sink in water?
P1: No
P3: No. It floats!
P1: Let's throw her into the bog! (yeah yeah ya!)
V: What also floats in water?
P1: Bread
P3: Apples
P2: Very small rocks
(V looks annoyed)
P1: Cider
P3: Grape gravy
P1: Cherries
P3: Mud
King: A Duck!