Puzzle 5

13th-century Venetian merchant and explorer.

Developed a waterproof lantern with Andrea Sreshta.

Facilitation of learning.

Isaac Asimov story about a planet that became dark.

London Aquatics Center architect, Iraqi-British.

Pancakes.

Spare tire blamed on love of lager.

Sunken remains of a boat.

The year's spookiest holiday.

What you are doing when you drink water.