Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

What is the probability of choosing the correct answer at random from the options below?

a) 1/4
b) 1/2
c) 1
d) 1/4

What does an Island and the letter T have in common?

What is the word or phrase?

I am the fastest animal but cannot climb the tree. What am I?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

I don't get anymore wetter, no matter how much rain falls on me.

Prove that the below maths equation is true.

8 + 8 = 91

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.