Kids may say some spectacularly funny things at times, but every now and then they can be impressively wise too.

On Tuesday, teacher Bret Turner tweeted about a recent puzzle he'd set for his first grade class.

"I am the beginning of everything, the end of everywhere," reads the riddle. "I'm the beginning of eternity, the end of time and space.

"What am I?"

The first response he got, while ultimately wrong, was pretty deep.

When you remember that these are six-year-olds we're talking about, "death" is both incredibly wise and incredibly bleak.

Small children are clearly growing up way faster these days.