Math riddles often look simple at first glance but can twist your brain when you dig deeper. The “11-11×11+11 riddle answer” is a perfect example of how logic, order of operations, and attention to detail can make a huge difference.
These kinds of riddles remind us that sometimes the challenge isn’t just solving the problem—it’s reading it correctly.
In this post, we’ll explore the clever math behind this riddle and dive into 33 more tricky riddles that will test your logic, creativity, and reasoning skills.
What Is the 11-11×11+11 Riddle Answer?
Let’s break down the expression carefully:
11 – 11 × 11 + 11
According to the order of operations (PEMDAS/BODMAS), you must solve multiplication before addition or subtraction.
- Multiply first: 11 × 11 = 121
- Then handle subtraction and addition in order: 11 – 121 + 11 = -99
So, the answer is -99.
33 Fun and Tricky Riddles Like 11-11×11+11
1. Riddle:
If 2 + 2 = 22, then what does 3 + 3 equal?
- Answer: 33
- Explanation: It’s a pattern, not real math. The riddle combines the numbers side by side.
2. Riddle:
What two numbers make 10 when multiplied and 7 when added?
- Answer: 5 and 2
- Explanation: 5×2=10 and 5+2=7.
3. Riddle:
I add six to eleven and get five. How is that possible?
- Answer: On a clock
- Explanation: 11 o’clock plus six hours equals 5 o’clock.
4. Riddle:
How many times can you subtract 10 from 100?
- Answer: Once
- Explanation: After the first subtraction, you’re no longer subtracting from 100.
5. Riddle:
What comes after 11 three times?
- Answer: 12
- Explanation: After 11, the next number is 12—no tricks here!
6. Riddle:
A farmer has 17 sheep. All but 9 run away. How many are left?
- Answer: 9
- Explanation: “All but 9” means 9 stayed.
7. Riddle:
What number do you get when you multiply all the numbers on a phone keypad?
- Answer: 0
- Explanation: Anything multiplied by 0 equals 0.
8. Riddle:
If 5 cats can catch 5 mice in 5 minutes, how long will it take 1 cat to catch 1 mouse?
- Answer: 5 minutes
- Explanation: Each cat catches one mouse in 5 minutes.
9. Riddle:
What can you divide by itself and still get the same result?
- Answer: 1
- Explanation: 1 ÷ 1 = 1.
10. Riddle:
A rooster laid an egg on the roof. Which way did it roll?
- Answer: Nowhere
- Explanation: Roosters don’t lay eggs.
11. Riddle:
If 11 + 11 = 4, then what does 12 + 12 equal?
- Answer: 6
- Explanation: It’s a clock riddle — 11 o’clock plus 11 hours is 10 o’clock (4 hours forward on a 12-hour clock), and 12 + 12 = 12 (6 hours forward).
12. Riddle:
What is half of 2 + 2?
- Answer: 3
- Explanation: Half of 2 is 1, and 1 + 2 = 3.
13. Riddle:
A girl has 10 cookies. She eats 3, gives 3 away, and breaks 2 in half. How many cookies does she have?
- Answer: 6
- Explanation: She still has the broken pieces; they still count.
14. Riddle:
What is the next number in the sequence: 2, 3, 5, 8, 12, 17, ?
- Answer: 23
- Explanation: The difference increases by one each time (1, 2, 3, 4, 5, 6).
15. Riddle:
You have two coins that make 30 cents, but one isn’t a nickel. What are the coins?
- Answer: A quarter and a nickel
- Explanation: Only one coin isn’t a nickel — the other is.
16. Riddle:
What’s the only number that’s the same upside down?
- Answer: 8
- Explanation: 8 looks the same when flipped.
17. Riddle:
If 1 = 5, 2 = 25, 3 = 125, what does 4 equal?
- Answer: 625
- Explanation: It’s a power pattern: 5⁰=1, 5¹=5, 5²=25, 5³=125, so 5⁴=625.
18. Riddle:
What three numbers give the same result whether multiplied or added?
- Answer: 1, 2, 3
- Explanation: 1×2×3=6 and 1+2+3=6.
19. Riddle:
What two whole numbers are closest to 100 but multiply to less than 1000?
- Answer: 31 and 32
- Explanation: 31×32=992.
20. Riddle:
What has 10 digits but isn’t a number?
- Answer: Your hands
- Explanation: Ten fingers — ten digits.
21. Riddle:
What goes up but never comes down?
- Answer: Age
- Explanation: You can only grow older.
22. Riddle:
What’s always in front of you but can’t be seen?
- Answer: The future
- Explanation: It hasn’t happened yet, but it’s ahead of you.
23. Riddle:
What comes once in a minute, twice in a moment, but never in a thousand years?
- Answer: The letter M
- Explanation: A word puzzle based on spelling.
24. Riddle:
If it takes 10 workers 10 days to build a wall, how long would it take 5 workers?
- Answer: 20 days
- Explanation: Half the workers, double the time (assuming equal speed).
25. Riddle:
A plane crashes exactly on the border of two countries. Where do they bury the survivors?
- Answer: You don’t bury survivors
- Explanation: They’re still alive.
26. Riddle:
What gets sharper the more you use it?
- Answer: Your brain
- Explanation: Practice makes you smarter, not duller.
27. Riddle:
If you multiply me by any other number, the answer always stays the same. What number am I?
- Answer: 0
- Explanation: Zero multiplied by anything equals zero.
28. Riddle:
How many times can you subtract 1 from 111?
- Answer: Once
- Explanation: After the first subtraction, it’s no longer 111.
29. Riddle:
What’s the next number in this pattern? 11, 22, 33, 44, 55, 66, ?
- Answer: 77
- Explanation: Each number increases by 11.
30. Riddle:
What number is halfway between 11 and 111?
- Answer: 61
- Explanation: (111 + 11) ÷ 2 = 61.
31. Riddle:
What two numbers add up to 10 and multiply to 25?
- Answer: No real numbers
- Explanation: The discriminant is negative (no real solution).
32. Riddle:
A man bought 11 pencils for $1. If each cost the same, how much was each pencil?
- Answer: About 9 cents
- Explanation: 100 ÷ 11 ≈ 9.09 cents each.
33. Riddle:
What number do you get if you add 11 to -11?
- Answer: 0
- Explanation: The positive and negative cancel each other.
Conclusion
The “11-11×11+11 riddle answer” shows how math riddles can be tricky if you overlook basic rules. It’s not just about knowing math—it’s about paying attention to detail.
These riddles prove that logic, patience, and a bit of humor can turn any problem into a fun challenge.