Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

There is a bag which have 21 blue balls and 23 red balls. You also have 22 red balls outside the bag. Randomly remove two balls from the bag. * If they are of different colors, put the blue one back in the bag. * If they are the same colour, take them out and put a red ball back in the bag. Repeat this until only one ball remains in the bag. What is the color of the sole ball left in the bag ?

I make two people out of one. What am I?

Can you solve the rebus below?

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

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

Which is faster, Heat or Cold ? Explain.

What does the below mathematical rebus mean?

A man died and leaves Rs.10,000 in his will. There are 6 beneficiaries- his 3 sons and their wives. The 3 wives receive Rs.3960 of which Priyanka gets Rs.100 more than Tanu and Neha gets Rs.100 more than Priyanka.
Pramod gets twice as much as his wife, Tushar gets the same as his wife, and Prashant gets 50% more than his wife.

Who is married to whom?