Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

Whats the next number in the below number sequence pattern.

Eight of us go fourth, not back, to protect our king from an attack. What are we?

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

Replace the question mark with the correct number in below Picture:

I have an eye but still cannot see.

Who am I?

What Deficiency does the below rebus represent?

VIT_MIN

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?