Player Knowledge vs Character Knowledge, an illustrative example

 

The players literally stumbled onto the coffin of Snow White and the bodies of the Seven Dwarves, and started begging for Religion and History checks to identify them.

Did you not watch Disney movies??? The Halfling literally ran through their home, where I described everything in sevens.

It took them 30 minutes, but when they got it, it was with a rolling wave of laughter.

That's a Basilisk that they turned to stone behind them, using polished silver. So they were able to use their player meta-knowledge in that case. but I guess the rest of their imagination was a bridge too far.

Snow White and the Seven Dwarfs is a good test of player knowledge.