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

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

What is the next number in this matchsticks series riddle?

We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Can you find the company name in the pictogram below?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)