1. Find out the wrong number in the series. 1, 3, 10, 21, 64, 129, 356, 777

2. Sum of three even consecutive numbers is 48, which is the least number

3. The value of log2 16 is:

4. The fourth proportional to 5, 8, 15 is:

5. The value of 0.1 x 0.1 x 0.1 + 0.02 x 0.02 x 0.02 is: 0.2 x 0.2 x 0.2 + 0.04 x 0.04 x 0.04

6. In a class composed of x girls and y boys what part of the class is composed of girls

7. What was the day of the week on 28th May, 2006?

8. (243)n/5 x 32n + 1 = ? 9n x 3n - 1

9. In how many ways can the letters of the word 'LEADER' be arranged?

10. If a light flashes every 6 seconds, how many times will it flash in ¾ of an hour?