How many 7's are there in the following series which are not immediately followed by 3 but immediately preceded by 8 ?
8  9  8  7  6  2  2  6  3  2  6  9  7  3  2  8  7  2  7  7  8  7  3  7  7  9  4

C. 2

In a school, the following codes were used during physical exercise. '1' means 'start walking', '2' means 'keep standing', '3' means 'start running at the same spot', '4' means 'sit down'.
How many times will a student who performs the following sequence without error from the beginning to the end have to sit down ?
1  2  3  4  2  3  1  4  4  3  2  2  1  2  4  3  1  4  4  1  2

C. 4

In a row of trees, one tree is fifth from either end of the row. How many trees are there in the row ?

B. 9

Manoj and Sachin are ranked seventh and eleventh respectively from the top in a class of 31 students. What will be their respective ranks from the bottom in the class ?

C. 25TH AND 21ST

In a row of boys, Kapil is eighth from the right and Nikunj is twelfth from the left. When Kapil and Nikunj interchange positions, Nikunj becomes twenty first from the left. Which of the following will be Kapil's position from the right ?  

B. 17TH