Puzzle 20

Water jet on a lawn, fun to run through.

Stretchy strip at the top of a skirt or trousers.

Numerical code that identifies any computer online.

What Jack climbed to meet the giant.

Club member in charge of club finances.

Legal protection for original books, music, etc.

Day when kids go trick or treating.

Someone who consumes animal flesh.

Energy that can be replaced or made anew.

Altitude; Mount Everest has the highest.

Greenish nut in a hard-to-split shell.