For the following two (02) items:
Let ( 6 + 10 + 14 +... up to m terms) =( 1 + 3 + 5 + 7 +... up to n terms)
where m < 25 and n < 25

How many values of m are possible?

For the following two (02) items:
There are 8 points on a plane out of which 4 points are collinear.

How many triangles can be formed by joining these points?

For the following two (02) items:
There are 8 points on a plane out of which 4 points are collinear.

How many quadrilaterals can be formed by joining these points?

For the following two (02) items:
Let $f(x) = a x ^ 2 + bx + c$ be a quadratic polynomial such that f(1) = f(4) = 2 Further, 2 is a root of f(x) = 0

What is the other root of f(x) = 0