$\frac{11}{16}>\frac{\square }{11}$. Which of the following numbers should be in the box to make the statement true?

Rani pasted marbles with lables bearing rational numbers, and then tries to arrange them in increasing and decreasing order. She found that one particular ball is always comes in the middle.

Which of these balls come in the middle?

Ajit subtracted a rational number $x$ from $1$. Then he subtracted another rational number $y$ from $1$. He found that, $(1-x) > (1-y)$.

Which of these is true about the rational numbers $x$, and $y$?

Four balances, $P, Q, R$, and $S$ are shown below. 

In which of the balances shown above do its respective pans hold equivalent expressions of rational numbers?

Find the odd one out of the following and give reason.

$\left(\frac{-5}{7}\right)+\frac{1}{12}+\frac{3}{4}+\left(\frac{-1}{3}\right)+\frac{10}{7}+\left(\frac{-1}{6}\right)$ equals

Raji created a number line. $A, B, P, Q, R,$and $S$ represent rational numbers.

Which of these is representing the number closest to $A\times B$?