If the area of a circle is 75.44 square cm then what is the circumference of the circle?

If 13 men can complete a piece of work in 36 days, then in how many days will 18 men complete the same work?

The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers?

What number should replace both the question marks (?) in the following question ?

?/144= 49 /?

What should come in the place of question mark (?) in the number series given below?

25, 34, 52, 79, 115,?

 A shopkeeper purchased 200 bulbs for Rs. 10 each. However, 5 bulbs were fused and had to be thrown away. The remaining were sold at Rs.12 each. What will be the percentage profit?