Long Riddles

Long riddles with answers test your problem solving skills. These lengthy puzzles test your ability to piece together information and find the answer.

Missing Digit Trick

A professor asked John to write down any multi-digit number. But, he put a condition, the number should not end with a zero.

John put down the number 96452.

Then the professor asked John to add up the five digits and subtract the total from the original number. John did and here is what he got:
96452 – 26 = 96426

The professor then asked John to cross out any one of the five digits and tell him the remaining numbers. John crossed out the 2 and told the professor the rest of the digits. John neither told the professor the original number nor what he had done with it. Yet, the professor told John the exact number he had crossed out.

How is it possible?

Riddle Answer

Cycle to Gradmother’s House

Last week Tom decided to cycle to his grandmother’s house.

On the first day, he cycled half of the distance.
On day 2, he cycled one half of the remaining distance.
On day 3, he cycled three quarters of the remaining distance.
On day 4, he cycled 10 miles.
On day 5, he cycled two thirds of the remaining distance and on the final day he cycled the remaining 5 miles.

How far is it to his grandmother’s house?

Riddle Answer

Product of Age Is 72

Two old friends, Jack and Bill, meet after a long time.

Jack: Hey, how are you man?
Bill: Not bad, got married and I have three kids now.
Jack: That’s awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool… But I still don’t know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh now I get it.

How old are Bill’s kids?

Riddle Answer

Statements from Six Suspects

After a local art theft, six suspects were being interviewed. Below is a summary of their statements.

Police know that exactly four of them told one lie each and all of the other statements are true. From this information can you tell who committed the crime?

Alan said:

It wasn’t Brian
It wasn’t Dave
It wasn’t Eddie

Brian said:

It wasn’t Alan
It wasn’t Charlie
It wasn’t Eddie

Charlie said:

It wasn’t Brian
It wasn’t Freddie
It wasn’t Eddie

Dave said:

It wasn’t Alan
It wasn’t Freddie
It wasn’t Charlie

Eddie said:

It wasn’t Charlie
It wasn’t Dave
It wasn’t Freddie

Freddie said:

It wasn’t Charlie
It wasn’t Dave
It wasn’t Alan

Riddle Answer

Five Donors

Five potential donors are sitting on a bench from left to right outside the surgery room and are waiting for the doctor. Their ages are 6, 10, 31, 47 and 61. Their heights are 41, 49, 61, 66 and 75 inches. Their weights are 41, 76, 97, 126 and 166 pounds.

Determine the position, blood group, age, height and weight of each of them with the help of the following ten hints.

  1. The person on the far right is 37 years older than Jimmy, and is 61 inches tall.
  2. Jimmy weighs 56 pounds more than his height.
  3. Alexandrio weighs 76 pounds and is 75 inches tall.
  4. Justin is type AB and weighs 56 pounds less than Jimmy.
  5. The person in the center is 10 years old, is blood type AO and weighs 97 pounds.
  6. Andrew, who is the first, is 66 inches tall, and weighs 100 pounds more than his height.
  7. The person who is blood type O, is 25 years older than the person to the left of them.
  8. Kian is 61 years old.
  9. The person who is blood type A, is 55 years younger than Kian and is not next to the person who is type AO.
  10. The person who is next to the 10 year old but not next to the person who is 66 inches tall, is blood type B, and weighs 126 pounds.
Riddle Answer

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