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

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

What is harder to catch the faster you run?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Can you Find and name the hidden bird in the picture below ?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

You need to move three matchsticks to form three squares. Can you do it?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

John leaves home and then he takes three right turns. John wants to return to home but he was scared of Jacob, who is wearing a mask.

What is John Situation ?