Pár "chemických":

Jaký chemický vzorec má svěcená voda?
H2OMG

Q: What did the bartender say when oxygen, hydrogen, sulfur, sodium, and phosphorous walked into his bar?
A: OH SNaP!

Two scientists walk into a bar.
The first one says "I'll have some H2O." The second says "I'll have some H2O too." Then he dies.