State which of the following sets are finite or infinite:
$\{ x : x \in N \text{ and } x \text{ is odd} \}$

State whether the following set is finite or infinite:
The set of letters in the English alphabet.

Which of the following is an empty set?

From the sets given below,select equal sets:
$A=\{2,4,8,12\}, B=\{1,2,3,4\}, C=\{4,8,12,14\}, D=\{3,1,4,2\}$
$E=\{-1,1\}, F=\{0, a\}, G=\{1,-1\}, H=\{0,1\}$

If $A, B$,and $C$ are three sets,then $A \times (B \cup C)$ is equal to

If $X = \{a, b, c, d\}$ and $Y = \{f, b, d, g\},$ find $X - Y$.