How many numbers between $9$ and $54$ (inclusive) are exactly divisible by $9$ but not by $3$?

In the series,$6, 4, 1, 2, 2, 8, 7, 4, 2, 1, 6, 3, 8, 6, 2, 1, 7, 1, 4, 1, 3, 2, 8, 6$,how many pairs of alternate numbers have a difference of $2$?

Geeta is taller than Seeta but not shorter than Radha. Radha and Rani are of the same height. Geeta is shorter than Paru. Amongst all the girls,who is the tallest?

If the first and second digits in the sequence $5, 9, 8, 1, 3, 2, 7, 4, 3, 8$ are interchanged,also the third and fourth digits,the fifth and sixth digits and so on,which digit would be the seventh counting to your left?

There are $35$ students in a class. Suman ranks $3^{rd}$ among the girls in the class. Amit ranks $5^{th}$ among the boys in the class. Suman is one rank below Amit in the class. No two students hold the same rank in the class. What is Amit's rank in the class?

If the day before yesterday was Saturday,what day will fall on the day after tomorrow?