Overview

This set of 20 advanced verbal reasoning questions is based on sequence puzzles, designed specifically for students preparing for the 11+ exam. Sequence puzzles challenge students to identify logical patterns, progressions, or relationships between items such as numbers, letters, or objects. Students must deduce the rule or relationship governing the sequence to predict the next item or fill in the missing parts of the sequence.

Example Question:

Example 1

Consider the following sequence:
A, C, E, G, ?

Question: What letter should come next?

Solution:
Each letter in the sequence is skipping one letter in the alphabet (A → C → E → G). Therefore, the next letter after G is I.

Questions

Basic Sequence Puzzle Tasks

Question 1

Look at the following number sequence:
5, 10, 15, 20, ?

Question: What number should come next?

Question 2

Find the missing letter in this sequence:
B, D, F, ?, J

Question 3

Which number should complete this sequence?
12, 14, 18, 24, ?

Question 4

Identify the missing number:
50, 45, 40, ?, 30

Question 5

What comes next in the following letter sequence?
X, V, T, ?, P

Intermediate Sequence Puzzle Tasks

Question 6

What number should complete this sequence?
3, 9, 27, 81, ?

Question 7

Find the missing number in the sequence:
7, 14, 28, 56, ?

Question 8

What is the next letter in the following sequence?
M, P, S, V, ?

Question 9

Complete the sequence:
2, 5, 9, 14, ?

Question 10

Identify the missing number:
30, 24, 18, ?, 6

Advanced Sequence Puzzle Tasks

Question 11

What comes next in the following sequence of letters?
A, C, F, J, ?

Question 12

Complete the following number sequence:
1, 4, 9, 16, ?

Question 13

What letter should come next in this alphabetical sequence?
Z, X, U, Q, ?

Question 14

Find the next number in the sequence:
100, 50, 25, ?, 6.25

Question 15

What comes next in this letter sequence?
L, M, O, P, R, ?

Expert-Level Sequence Puzzle Tasks

Question 16

Complete the following number sequence:
8, 16, 32, 64, ?

Question 17

Find the missing number in the sequence:
144, 121, 100, ?, 64

Question 18

What is the next letter in this sequence?
B, E, H, K, ?

Question 19

Identify the next number:
2, 6, 12, 20, ?

Question 20

What comes next in the following sequence of letters?
C, F, I, L, ?

Answers

Basic Sequence Puzzle Tasks

  1. The next number is 25.
    Explanation: Add 5 to each number in the sequence.
  2. The missing letter is H.
    Explanation: The sequence skips one letter in the alphabet (B → D → F → H → J).
  3. The next number is 32.
    Explanation: The differences between the numbers are increasing by 2 (12 → 14, 14 → 18, 18 → 24, etc.).
  4. The missing number is 35.
    Explanation: Subtract 5 from each number in the sequence.
  5. The next letter is R.
    Explanation: The sequence skips one letter in reverse alphabetical order (X → V → T → R → P).

Intermediate Sequence Puzzle Tasks

  1. The next number is 243.
    Explanation: Multiply each number by 3 (3 × 3 = 9, 9 × 3 = 27, etc.).
  2. The next number is 112.
    Explanation: Double each number (7 × 2 = 14, 14 × 2 = 28, etc.).
  3. The next letter is Y.
    Explanation: Add 3 to the alphabetical position of each letter (M → P → S → V → Y).
  4. The next number is 20.
    Explanation: The differences between the numbers increase by 1 (2 → 5 = +3, 5 → 9 = +4, etc.).
  5. The missing number is 12.
    Explanation: Subtract 6 from each number in the sequence.

Advanced Sequence Puzzle Tasks

  1. The next letter is O.
    Explanation: The differences between the alphabetical positions of the letters increase by 1 (A → C = +2, C → F = +3, etc.).
  2. The next number is 25.
    Explanation: These numbers are squares of consecutive integers (1² = 1, 2² = 4, etc.).
  3. The next letter is L.
    Explanation: The sequence is decreasing by 2, 3, and 4 letters in reverse alphabetical order.
  4. The next number is 12.5.
    Explanation: Each number is halved (100 → 50, 50 → 25, etc.).
  5. The next letter is S.
    Explanation: The sequence skips one letter, then skips two letters in the alphabet (L → M, M → O, O → P, etc.).

Expert-Level Sequence Puzzle Tasks

  1. The next number is 128.
    Explanation: Each number is doubled.
  2. The next number is 81.
    Explanation: These are consecutive square numbers in reverse order (12² = 144, 11² = 121, etc.).
  3. The next letter is N.
    Explanation: The sequence skips two letters in the alphabet (B → E → H → K → N).
  4. The next number is 30.
    Explanation: Add consecutive even numbers to the sequence (2 → 6 = +4, 6 → 12 = +6, etc.).
  5. The next letter is O.
    Explanation: The sequence skips two letters in the alphabet (C → F → I → L → O).

This set of sequence puzzles challenges students to think critically about patterns, logical progressions, and relationships between numbers and letters. These tasks develop strong reasoning and analytical skills, which are essential for success in the 11+ exam.