Solve below rebus puzzle?

What shoe company does this rebus represent?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Which Travels Faster? Solve below famous picture riddle:

Which fur should we be getting from the Lion?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

Solve the following series:
AZ, GT, MN, __, YB

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

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