Let’s solve these puzzles one by one.

Q11

We have circles divided into 4 sectors, with numbers in each sector. The missing number needs to be found in the bottom-right circle.

Analyzing the other circles:

1. Top-left:

2. Top-right:

3. Bottom-left: .

For the bottom-right circle:

1 + 5 = 6, , 21 + 9 = 30.

Answer: (b) 13

Q12

This is a block puzzle where the sum of the numbers on the top row equals the number below.

For the first row: , divided by 3 gives .

Second row: , divided by 2 gives .

Third row: , divided by 3 gives .

Thus, the missing number is 3.

Answer: (c) 3

Q13

This is a diamond-shaped puzzle with numbers arranged in a grid. Observing:

The sum of opposite corners seems to follow a pattern:

(6 + 6 = 12), (7 + 7 = 14), (7 + ? = 14).

Answer: (d) 1

Q14

This is a triangle puzzle with numbers in three corners and one in the center. Observing:

1. First triangle:

3 \times 12 = 36, , 36 + 135 + 9 = 180.

2. Second triangle:

7 \times 4 = 28, , 28 + 165 + 15 = 208.

3. Third triangle:

9 \times 3 = 27, , 27 + ? + 19 = 228.

27 + ? + 19 = 228 \implies ? = 228 - 46 = 182.

Answer: (c) 228

Let me know if further clarification is needed!