Answer to Riddle 3 should be FOOTPRINTS rather than FINGERPRINTS.
20 Riddles That Will Challenge Your Brainpower

Solving riddles can force you to think in creative or unusual ways that will make your brain cells work overtime. This can stop the brain from shrinking with age, boost memory skills, and improve brain-cell connections.
We at Bright Side want you to have fun while exercising your brain and that’s why we prepared a compilation of entertaining, mind-boggling riddles.
1.


2.


3.


4.


5.


6.


7.


8.


9.


10.


11.


12.


13.


14.


15.


16.


17.


18.


19.


20.


Which one was the hardest for you to guess? Share these riddles with your friends to help them keep their minds sharp.
Comments
The last one is not correct. If the 7-8 pages are on one paper than the 100-101 and 222-223 can't be so the answer is 5. If the 7-8 pages are on two different papers than the 100-101 and 222-223 are on one paper so the answer is 4.
Riddle #19 (How many attempts) - Can be done with only 3 attempts. Two attempts for the first door (the third would obviously be the correct one), one attempt for the second.
Related Reads
20 People Shared Their Best and Hilarious Pregnancy Moments

15+ Moments That Prove True Kindness Is Helping Someone Without Making Them Feel Ashamed

10 Airline Moments That Teach Us the Best Things We Pack for Travel Are Kindness and Compassion

13 Animal Shelter Moments That Prove Real Compassion and Quiet Kindness Have No Pedigree

17 Stories That Remind Us It Only Takes One Small Step to Start the Life You Actually Want—Even When Everything Feels Impossible

12 Hidden Acts of Kindness That Prove a School Runs on More Than Lessons

10 Real-Life Stories That Prove Justice Always Finds a Way, Even After Years of Silence

13 Handmade Creations That Prove Old-School Hobbies Are Timeless

12 Times Quiet Kindness and Compassion Turned Everyday Moments Into Heroic Stories

10 Moments When One Small Gesture of Kindness Came Back in an Unexpected Way

12 Real Moments That Teach Us Tender Compassion Still Brings Hope and Strength, Even When Hearts Feel Heavy in 2026

10 Driving Moments That Teach Us Kindness Is Still the Most Practical GPS Leading You Home in 2026
