18, 25, 23, 30, ?

In this question, a sequence is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
NOA , PQB , RSC ?

Select the related word/letters/number from the given alternatives.

Pakistan: Islamabad :: Germany: ? 

Nirmala moved a distance of 75 metres towards the north. She then turned to the left and walking for about 25 metres, turned left again and walked 80 metres. Finally, she turned to the right at an angle of 45°. In which direction was she moving finally?

Amit ranked 7th from the top and 26th from the bottom in his class. How many students are there in the class?

Directions: In the following questions, a series is given with one term missing. Choose the correct alternative from the given ones that will complete the series:

J2Z , K4X , I7V , ? , H16R , M22P 

Which of the given options would be a logical sequence of the following words?

1. Primary

2. Kinder Garten

3. University

4. Secondary

5. Higher Secondary

Direction: Select the related word from the given alternatives.

IGE : LJH :: USQ : ?