1. In a row of children, Amit is 7th from the left and Sonu is 5th from the right. When they interchange their positions, Amit becomes 15th from the left. How many children are there in the row?

2. In a line of people, John is 7th from the left and 12th from the right. How many people are in the line?

3. Five books V, W, X, Y, and Z are placed on a shelf. W is placed immediately above Y and immediately below V. X is placed below Y and Z is placed above V. Which book is placed at the top?

4. Five cities - A, B, C, D, and E - are arranged from north to south. B is north of D but south of A. E is the southernmost city. C is north of D. What is the correct order from north to south?

5. In a certain code language, 'pit dar na' means 'you are good', 'dar tok pa' means 'good and bad', and 'tim na tok' means 'they are bad'. What is the code for 'and' in this language?

6. Five friends - F, G, H, I, and J - are standing in a line. F is not at the end of the line. G is between two people. H is not next to I. J is at one end. What is a possible order of the friends from left to right?

7. If 'A % B' means 'A is the father of B', 'A @ B' means 'A is the mother of B', 'A & B' means 'A is the sister of B', and 'A * B' means 'A is the brother of B', then which of the following means 'P is the maternal uncle of S'?

8. In a line of people, Sarah is 5th from the left and 8th from the right. How many people are in the line?

9. If 'A + B' means 'A is the brother of B', 'A - B' means 'A is the sister of B', 'A × B' means 'A is the father of B', and 'A ÷ B' means 'A is the mother of B', then which of the following means 'M is the uncle of N'?

10. Five friends - Alex, Beth, Charlie, Dana, and Ethan - are standing in a line. Alex is not at the end of the line. Beth is between two people. Charlie is not next to Dana. Ethan is at one end. What is a possible order of the friends from left to right?