A conversation:

Evan: Ollie, what did you have for lunch today?
Ollie: I don't know.
Evan: Was it taco bake?
Ollie: I don't know.
Me: Was it pizza?
Ollie: I don't know.
Me: Was it saucy?
Ollie: I don't know.
Evan: Was it crunchy?
Ollie: I DON'T KNOW.
Me: Let's play 20 questions, and you tell us when we are getting warm.
Ollie: Is it warm in summer and fall?
Us: Yes.
Ollie: Can you wear shorts when it's warm?
Us: Yes.
Ollie: Is it warm in the car?
Me: If the heater is on, yes.
Ollie: Is it warm in a truck?
Me: If the heater is on, yes.
Ollie: Is it warm in a van?
Me: If the heater is on, yes.
Ollie: Is it warm in a house?
Me: If the heater is on, yes.
Ollie: Is it warm in a restaurant?
Me: If the heater is on, yes.
Ollie: Is that 20 questions about warm?
(Continue dialogue for several hours straight, and welcome to 4!)