The digit in the units' place of a number is equal to the digit in the ten's place of half of that number and the digit in the ten's place of that number is less than the digit in unit's place of half of the number by 1. If the sum of the digits of the number is 7, then what is the number?

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

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

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. $20$

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

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

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. $19$

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?

Select the correct option and complete the series. 

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

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

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