Can you identify the famous TV character from the rebus below?

Rearrange the letters in "new door" to make one word.

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

Using Only Five 5's and any mathematical operator make sum as 37

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

Count the number of triangles in the below picture?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?