Medium Riddles
These medium riddles are not too hard and not too easy, and are a great way to increase your riddlesolving prowess.
Reasoning  
You have two lengths of rope. Each rope has the property that if you light it on fire at one end, ...


You are standing in a pitchdark room. A friend walks up and hands you a normal deck of 52 cards. ...


Two trains are traveling toward each other on the same track, each at 60 miles per hour. When they ...


You are standing in a house in the middle of the countryside. There is a small hole in one of the ...


There are 3 switches outside of a room, all in the 'off' setting. One of them controls a lightbulb ...


Your friend pulls out a perfectly circular table and a sack of quarters, and proposes a game. ...


You have twelve balls, identical in every way except that one of them weighs slightly less or more ...


You have just purchased a small company called Company X. Company X has N employees, and everyone ...


You have two jugs, one that holds exactly 3 gallons, and one that holds exactly 5 gallons. Using ...


You are walking down a path when you come to two doors. Opening one of the doors will lead you to a ...


Three people check into a hotel room. The bill is $30 so they each pay $10. After they go to the ...


Four people come to an old bridge in the middle of the night. The bridge is rickety and can only ...


A man needs to send important documents to his friend across the country. He buys a suitcase to put ...


A man comes to a small hotel where he wishes to stay for 7 nights. He reaches into his pockets and ...


At a dinner party, many of the guests exchange greetings by shaking hands with each other while ...


A king has 100 identical servants, each with a different rank between 1 and 100. At the end of each ...


You have two sand hourglasses, one that measures exactly 4 minutes and one that measures exactly 7 ...


This is a harder version of the famous riddle, A Liar and a Truth Teller. You should try that ...


You have 25 horses. When they race, each horse runs at a different, constant pace. A horse will ...


A guard is stationed at the entrance to a bridge. He is tasked to shoot anyone who tries to cross ...


There are 100 ants on a board that is 1 meter long, each facing either left or right and walking at ...


A monk leaves at sunrise and walks on a path from the front door of his monastery to the top of a ...


Bill and Stacie are delighted when their new baby, Patrick, is born on February 29th, 2008. They ...


A frog is at the bottom of a well. It is a 30 foot climb to get out. Each morning, the frog jumps 3 ...


You are visiting NYC when a man approaches you. "Not counting bald people, I bet a hundred bucks ...


A deliveryman comes to a house to drop off a package. He asks the woman who lives there how many ...


100 men are in a room, each wearing either a white or black hat. Nobody knows the color of his own ...


Probability  
You are on a gameshow and the host shows you three doors. Behind one door is a suitcase with $1 ...


You have a basket of infinite size (meaning it can hold an infinite number of objects). You also ...


What is the least number of people that need to be in a room such that there is greater than a 50% ...


Your enemy challenges you to play Russian Roulette with a 6cylinder pistol (meaning it has room ...


Your friend shows you two jars, one with 100 red marbles in it, the other with 100 blue marbles in ...


Logic  
Einstein said that only 2% of the world could solve this problem. There are 5 houses in 5 different ...


Lateral Thinking  
A girl lives in a house with her parents. There is a cellar door in the house, and her parents warn ...


You overhear a man talking to a clerk in a hardware store. The clerk says "One will cost you 12 ...


What belongs to you, but other people use it more than you do?


A man who lives in Middletown has two girlfriends, one in Northtown and one in Southtown. Trains ...


A truck stops at a weigh station at the entrance to a bridge and is shown to weigh exactly 2000 ...


Romeo and Juliet are found dead in a small puddle of water, surrounded by broken glass. The ...


A man is found dead in the desert. He is wearing only his underwear. Half of a straw is found ...


A man eats dinner, goes up to his bedroom, turns off the lights, and goes to sleep. In the morning, ...


A man lives on the 44th floor of his building. On rainy days, when he gets home from work, he takes ...


A poor miller living with his daughter comes onto hard times and is not able to pay his rent. His ...


Pete is a worker on a large ship with hundreds of other men. He is constantly making mistakes, ...


Language  
What gets wetter as it dries?


It is greater than god, more evil than the devil, the poor have it, the rich need it, and if you ...


Math  
There are 1 million closed school lockers in a row, labeled 1 through 1,000,000. You first go ...


Using only and all the numbers 3, 3, 7, 7, along with the arithmetic operations +,,*, and /, can ...


Andy, Barry, and Carl race each other in a 100meter dash. They each run at a constant speed ...


Five coworkers want to know what the average of all their salaries is, but refuse to reveal ANY ...


The King of a small country invites 1000 senators to his annual party. As gifts, each senator ...


Spatial  
A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous ...


You are somewhere on Earth. You walk due south 1 mile, then due east 1 mile, then due north 1 mile. ...


You can easily "tile" an 8x8 chessboard with 32 2x1 tiles, meaning that you can place these 32 ...


Two twin brothers share the same birthday. Their father gets them a perfectly rectangular birthday ...


Programming  
Two words are anagrams if and only if they contain the exact same letters with the exact same ...


Two robots are placed at different points on a straight line of infinite length. When they are ...
