Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

With the help clues provided in the image, can you find the 5 digit key?

Dr Doom invited a group of puzzle fanatics to a party which was oriented toward having puzzle-oriented games. At night, he introduced the guests to a 'unique riddle'. A prize was offered to the one who solved it first.

The guests included six people named Tom Paul, Fox Obama, Jeremy Reener, Alex Murphy, Prim Pastor, and Ellen Page. The winner of the 'unique riddle' contest was to be announced after the dinner. So Dr. Doom stood up and started the announcement:

'Okay now everybody!'
'The winner of�'
'The Hardest Riddle Ever Event'

But before he could complete it, the light went out and his voice was not heard without the mic by anyone. But they already knew who the winner was. Can you deduce the name of the winner?

Find the next number in the series below

21 32 54 87 131 ?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

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

What does does this rebus picture means ?

A man dies of old age on his 25 birthday. How is this possible?