It wasn't raining

6

8x8-8= 56
7x7-7= 42
6x6-6= 30
5x5-5= 20
3x3-3= ? >>>> 6

Glass.

50.
1/3 (100) = 33.33333 1/3 * 1/2 (100) = 1/6 = 16.6666 1/3 + 1/6 (100) = 50

You can't tune a fish. (tuna fish)

Straw-berry

M&S

Human being.
A person can use a climbing stick to climb a mountain and he can ride a horse to come back from the hills.

Because they just had a 31 day March.

A calendar

Letter "C".
(The pronunciation of alphabet ‘C’ and word ‘Sea’ is same)

A nose.