Write the number name of the numeral.

Eighteen Million five hundred four thousand eight hundred fifty nine.

The unit digit of the number $6^{256}- 4^{256}$ is:

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

In a following equation, what should be maximum value of $R$?

$4P2 + 3Q1 + 2R5 = 1178$

If the cost of  $\frac{5}{3}$ parts of a pizza is Rs.$300$, then what will be the cost of $\frac{3}{5}$ parts of the pizza?

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

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

Select the correct option and complete the series. 

$1,8,9,64, \_\_\_\_\_, \_\_\_\_\_,49,512,\_\_\_\_\_$

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. $19$