Cryptic Twilight: Humorous Equations

When a squirrel meets a taco...
SquirrelTaco = (Nut < PineCone) * Medium(Laugh)

Nut ^4

The secret of the universe revealed...
Universe = √(Coffee - Sleep) * π(Passion)

A cat's philosophy on laser pointers:
CatLogic.(:3) = (Chasing x 3) + complexity

The ultimate recipe...
Chef = ½(Salt + Spice) ^2 / (Boredom)