ADVERTISEMENT

Get ready to think! These are the difficult riddles that require your brain thrusters to be at maximum capacity! Some are harder than others so dig deep, hunker down and enjoy an evening of riddles! 

Riddle:

Name an eight letter word that has kst in the middle, in the beginning, and at the end.

Answer:

Inkstand - kst is in the middle. "In" is the beginning, and "and" ends the word.

Is this worth sharing?
Comment
Riddle:

There was a man who was born before his father, killed his mother, and married his sister. Yet, there was nothing wrong with what he had done. Why?

Answer:

His father was in front of him when he was born, therefore he was born before him. His mother died while giving birth to him. Finally, he grew up to be a minister and married his sister at her ceremony.

Is this worth sharing?
Comment
Riddle:

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.

The Question: How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly?

Answer:

It is not possible to guess only three fruits correctly: the fourth fruit is then correct too! So nobody has guessed three fruits correctly and 123-43-39-31 = 10 people have guessed four fruits correctly.

Is this worth sharing?
Comment
Riddle:

A prisoner is told "If you tell a lie we will hang you; if you tell the truth we will shoot you." What can he say to save himself?

Answer:

You will hang me.

Is this worth sharing?
Comment
Riddle:

A boy Was Born In 1955 he just had his 18th birth day today how did that happen

Answer:

1955 is not the year he was born it was the hospital room he was born in

Is this worth sharing?
Comment
ADVERTISEMENT
Riddle:

What is the difference between a school boy studying and a farmer watching his cattle?

Answer:

One is stocking his mind, while the other is minding his stock.

Is this worth sharing?
Comment
Riddle:

In 2000, a 40-year-old doctor told his son that when a little boy he decided to be a doctor by seeing a internet web site about performing a heart transplant on a puppy with a defective heart so that the puppy would live a normal life. I then thought that I would be a doctor so that I could help people in a similar way. What is the defect in this story?

Answer:

The internet did not exist when the doctor was a little boy.

Is this worth sharing?
Comment
Riddle:

A boy has as many sisters as brothers, but each sister has only half as many sisters as brothers.

How many brothers and sisters are there in the family?

Answer:

Four brothers and three sisters.

Is this worth sharing?
Comment
Riddle:

I can come in a can,

I can come as a punch,

I can come as a win,

You can eat me for lunch.

What am I?

Answer:

Beet/Beat

Is this worth sharing?
Comment
Riddle:

There are 100 light bulbs lined up in a row in a long room. Each bulb has its own switch and is currently switched off. The room has an entry door and an exit door. There are 100 people lined up outside the entry door. Each bulb is numbered consecutively from 1 to 100. So is each person. Person No. 1 enters the room, switches on every bulb, and exits. Person No. 2 enters and flips the switch on every second bulb (turning off bulbs 2, 4, 6, …). Person No. 3 enters and flips the switch on every third bulb (changing the state on bulbs 3, 6, 9, …). This continues until all 100 people have passed through the room. What is the final state of bulb No. 64? And how many of the light bulbs are illuminated after the 100th person has passed through the room?

Answer:

First think who will operate each bulb, obviously person #2 will do all the even numbers, and say person #10 will operate all the bulbs that end in a zero. So who would operate for example bulb 48: Persons numbered: 1 & 48, 2 & 24, 3 & 16, 4 & 12, 6 & 8 ........ That is all the factors (numbers by which 48 is divisible) will be in pairs. This means that for every person who switches a bulb on there will be someone to switch it off. This willl result in the bulb being back at it's original state. So why aren't all the bulbs off? Think of bulb 36:- The factors are: 1 & 36, 2 & 13, 6 & 6 Well in this case whilst all the factors are in pairs the number 6 is paired with it's self. Clearly the sixth person will only flick the bulb once and so the pairs don't cancel. This is true of all the square numbers. There are 10 square numbers between 1 and 100 (1, 4, 9, 16, 25, 36, 49, 64, 81 & 100) hence 10 bulbs remain on.

Is this worth sharing?
Comment
ADVERTISEMENT

Riddles needing much effort or skill to accomplish, deal with, or understand. These won't tease your brain they will destroy it!