Puzzle 5

Acceptable rules of social behavior

Cleaning dust from carpets with a machine

Card game played alone

Stuck out

Calcium build-up in kettles and domestic pipes

Lung inflammation caused by an infection

Neckwear worn by a feline, often with name tag

The first meal of the day

Absolving someone of sins

Knight's armor made of interwoven metal rings

Flock of large birds you don't chase