What does this rebus mean?

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What am I?

Through your logical capabilities, can you make 7 an even?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

Why do you find that most of the buildings are deprived of the 13th floor?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

The cream is heavier than Milk. True or False?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

If your uncle’s sister is not your aunt, what relation is she to you?

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?