Universally Correct Reply

So I'm on the phone with daughter Robyn (mother of granddaughter Lorelei).

Me: What's yellow, smooth and deadly?

Robyn: Lorelei's poop.

Me: No. Shark-infested custard.

Robyn: *giggles* (because I'm a funny guy)

Me: What's green and dangerous?

Robyn: Lorelei's poop.

Me. No. A frog with a hand grenade.

Robyn: *giggles* (juvenile, but funny)

Me: But thinking about it, your answers were correct too.

Robyn: You got that right.