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

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

How many words can a pen with half refill write?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

What does this Rebus Picture mean?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

You need to remove two matchsticks to make the below equation true. Can you do it ?