RAY: Here it is. If a mother has two kids and the older one is a boy. What are the chances the younger is a boy? OK.

TOM: Whoa.

RAY: Well, that's only half the puzzler.

TOM: I know this puzzler. This is a killer.

RAY: And the answer is 50-50. OK. You got that?

TOM: Yeah.

RAY: So, I'll give you that part.

TOM: Yeah. So, she's got a boy kid

RAY: Who's the older?

TOM: Right.

RAY: The mother has two kids. The older one is a boy, what are the chances the younger one is a boy?

TOM: Fifty-fifty.

RAY: Got it?

TOM: I'm with you on that.

RAY: You paying attention now?

TOM: Yeah.

RAY: Now, suppose that same mother. No. Suppose a different mother has two kids and one of them is a boy, what are the chances --

TOM: That the other one --

RAY: That the other one is a boy? Well, it's got to be 50-50. Right?

TOM: You would think.

RAY: Wrong.

TOM: Of course.

RAY: So, what are those chances? Now, if you're thinking --

TOM: And why? We want all the calculations, man.

RAY: I got them all right here, man. Cause Steve didn't send the answer, but, of course --

TOM: We don't need answers.

RAY: We don't need no... Oh yeah, we do need, just send the puzzler. Send the stinkin' answer.

TOM: Yeah. This is very good. Very good.

[ Car Talk Puzzler ]