Number, Ranking and Time Sequence Test Questions

How many 6's are there in the following sequence that are immediately preceeded by 3 but not immediately followed by 0?

3 6 9 0 6 9 3 6 9 3 6 6 3 6 0 6 3 3 6 0

If each term in the given sequence is assigned number 1, 2, 3... according to their position from the left, then the sum of the numerical values of the positions of the symbols will be ____.

R+JM2$#QR?*O@7F3

Rearrange the jumbled letters to make a meaningful word and then select the one which is different.

Nitin ranks 23rd from the top in a class of 42. What will be his rank from the last?