Q1. 2, 4, 6, 8, ?

• A) 10
• B) 11
• C) 12
• D) 9

Answer: A — Even numbers: +2 each time → 10.

Q2. 1, 3, 5, 7, ?

• A) 9
• B) 8
• C) 10
• D) 11

Answer: A — Odd numbers: +2 each time → 9.

Q3. 5, 10, 15, 20, ?

• A) 25
• B) 30
• C) 20
• D) 35

Answer: A — Multiples of 5 → 25.

Q4. 1, 4, 9, 16, ?

• A) 25
• B) 24
• C) 20
• D) 21

Answer: A — Perfect squares: 5²=25.

Q5. 2, 6, 18, 54, ?

• A) 162
• B) 108
• C) 216
• D) 180

Answer: A — ×3 each time: 54×3=162.

Q6. 100, 90, 80, 70, ?

• A) 60
• B) 50
• C) 65
• D) 55

Answer: A — –10 each time: 70–10=60.

Q7. 3, 6, 12, 24, ?

• A) 48
• B) 36
• C) 32
• D) 44

Answer: A — ×2 each time: 24×2=48.

Q8. 1, 2, 4, 8, 16, ?

• A) 32
• B) 28
• C) 24
• D) 30

Answer: A — ×2: 16×2=32.

Q9. 10, 20, 30, 40, ?

• A) 50
• B) 55
• C) 45
• D) 60

Answer: A — Multiples of 10 → 50.

Q10. 0, 1, 3, 6, 10, ?

• A) 15
• B) 12
• C) 14
• D) 13

Answer: A — Differences: 1,2,3,4,5 → 10+5=15.

Q11. 7, 14, 21, 28, ?

• A) 35
• B) 42
• C) 30
• D) 32

Answer: A — Multiples of 7 → 35.

Q12. 81, 27, 9, 3, ?

• A) 1
• B) 2
• C) 0
• D) 3

Answer: A — ÷3 each time: 3÷3=1.

Q13. 2, 3, 5, 7, 11, ?

• A) 13
• B) 12
• C) 14
• D) 15

Answer: A — Prime numbers → 13.

Q14. 4, 8, 12, 16, ?

• A) 20
• B) 18
• C) 22
• D) 24

Answer: A — Multiples of 4 → 20.

Q15. 1, 8, 27, 64, ?

• A) 125
• B) 100
• C) 144
• D) 81

Answer: A — Cubes: 5³=125.

Q16. 50, 40, 31, 23, 16, ?

• A) 10
• B) 9
• C) 11
• D) 8

Answer: A — Differences: –10,–9,–8,–7,–6 → 16–6=10.

Q17. 6, 12, 18, 24, 30, ?

• A) 36
• B) 32
• C) 34
• D) 40

Answer: A — Multiples of 6 → 36.

Q18. 5, 8, 11, 14, ?

• A) 17
• B) 16
• C) 18
• D) 15

Answer: A — +3 each time: 14+3=17.

Q19. 2, 4, 8, 14, 22, ?

• A) 32
• B) 28
• C) 30
• D) 34

Answer: A — Differences: 2,4,6,8,10 → 22+10=32.

Q20. 9, 18, 36, 72, ?

• A) 144
• B) 108
• C) 126
• D) 162

Answer: A — ×2: 72×2=144.