Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

What do you answer even though it never asks you questions?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

What is the next number in the series?

15 29 56 108 208 ?

I add 5 to 9 and get 2. The answer is correct, so what am I?