How many day or days in a week?
Days
Is it pair of socks or sock?
socks
Do you say bunch of grape or grapes?
Grapes
Girls have long hair / hairs?
Hair
I have two dog / dogs as pets?
dogs
What is the singular of bells?
bell
I see a herd of spotted deers / deer
Deer
Birds live in a nest / nests?
Nest
What is the plural of Sheep?
Sheep
A pig/pigs in a pen?
pig