What value will be obtained if the cube of 8 is subtracted from the square of 31?

The sum of three consecutive numbers is $126$. Find the highest number-

1. $41$
2. $42$
3. $43$
4. $44$

1 USD = Rs. 67.89. A money changer adds a margin of Rs. 1.11. What will be the cost of 150 USD ? 

1. Rs. 10,183
2. Rs. 10,350
3. Rs. 10,330
4. Rs. 10,450

$A$ is Highest Common factor of $\frac{3}{4}$ and $\frac{9}{16}$

$B$ is Least Common Multiple of $\frac{16}{5}$ and $\frac{4}{25}$

What is the value of $A + B$?

Twice the difference between two numbers is equal to their sum. If one number is $15$, Find the other number.

1. $15$
2. $10$
3. $5$
4. $20$

How many times does the number $3$ occur in unit's place for numbers ranging from $1$ to $100$?

1. $20$
2. $11$
3. $10$
4. $19$

Convert 18 into binary number?