Our man Ostap was going home from Kiev. He rode halfway by train – fifteen times as fast as he goes on foot. The second half he went by ox team. He can walk twice as fast as that. Would he have saved time if he had gone all the way on foot? If so, by how much?
A taxi driver was called to take a group of passengers to the train station. The station is normally an hour away, but with traffic being extra heavy, it took a full hour and a half. On the return trip the traffic was still as heavy but it took only 90 minutes. Why?
There are 4 clocks in a room. One gains a minute every hour. Another loses a minute every hour. One runs backward at normal speed. The fourth always keeps the correct time. At 7:03 today, they all showed the same time, which was correct. When will this happen again?
A father and his son were travelling in the car and they met with an accident. The father died on the spot and the son became unconscious. He was taken to hospital and the doctor said, “I can’t operate this boy, he is my son.” Who is the Doctor ?
There are two books sitting side by side, consisting of exactly 100 pages. The book on the left is upside down. If you add the page number at the extreme left side of the book on the left to the page number at the extreme right side of the right hand book, what is the total?
A man is found hanging in a room 30 feet off the ground. There is nothing else in the room except for a large puddle of water on the ground. The police can’t see any way the man could have climbed the walls to get to where he is hanging. How did this man hang himself?
“Every day at noon,” Lucas said, “a ship leaves Le Havre for New York and another ship leaves New York for Le Havre. The trip lasts 7 days and 7 nights. How many New York-Le Havre ships will the ship leaving Le Havre today meet during its journey to New York?
You have a large number of friends coming over and they all get thirsty. Your first friend asks for 1/2 a cup of water. Your second friend asks for 1/4 a cup of water. Your third friend asks for 1/8 a cup of water, etc. How many cups of water do you need to serve your friends?
Three missionaries and three cannibals want to get to the other side of a river. There is a small boat, which can fit only two. To prevent a tragedy, there can never be more cannibals than missionaries together. How can all the cannibals and missionaries cross the river safely ?
A woman depended on a public telephone to make her calls, but it was usually out of order. Each day she reported this to the phone company, but nothing was done. Finally she came up with a lie that she told the phone company. The phone was fixed the next day. What did she tell them?
Dee Septor, the famous magician, claimed to be able to throw a ping-pong ball so that it would go a short distance, come to a complete stop, and then reverse itself. He also added that he would not bounce the ball off any object, or tie anything to it. How could he perform this trick?
A book has 500 pages: The 1st page says “Exactly 1 page in this book is false.” The 2nd page says “Exactly 2 pages in this book are false.” … The 500th page says “Exactly 500 pages in this book are false.” Can any of the pages be true?
A book has 500 pages: The 1st page says “Exactly 1 page in this book is false.” The 2nd page says “Exactly 2 pages in this book are false.” … The 500th page says “Exactly 500 pages in this book are false.” Can any of the pages be true?
A ping pong ball fell down into a narrow metal pipe embedded in concrete one foot deep. You have a table tennis racket (bat or paddle), a pair of shoe laces and a large unopened water bottle, which does not fit into the pipe. How can you get the ping pong ball out of the pipe undamaged?
There are 150 members in my club. We decided to have a ping pong tournament. All the members came forward to play in the game. Every time a member loses a game he is out of the tournament. There are no ties. Can you tell how many games must be played in order to determine the champion?
