
Vote for Best PuzzlesPlease vote to select the best puzzles from TheMathMom.
Fruitful Tree?A plum tree is split into 3 branches. Each of these brunches divides itself into 3 further branches. These 3 branches in their turn are split at the ends into 2 more branches each. At the tip of each branch there is a fruit. How many apples are on this tree?Click to see the puzzle answer
Smart CashierOne theater ticket costs $20. You are paying the cashier $100, and she returns 5 tickets. How does she know that you wanted 5 tickets and not less with a change?Click to see the puzzle answer
Animal ColorsDinosaurs: Were dinosaurs pink, green or brown?Bear: What color is the bear if he could only run South? Click to see the puzzle answer
Adam and EveHow old was Eve when she ate the apple, if just 10 years before she was half Adam's age and now only 8 years younger?Click to see the puzzle answer
InfidelityAnother celebrity was photographed last night entering the house of his brotherinlaw's wife's only sisterinlaw. Should we expect yet another public apology tomorrow morning?Click to see the puzzle answer
Around the Globe PuzzleBill Clinton is the only US leader who visited North Korean' capital. For this trip across the Pacific, from LA to Pyongyang, he borrowed a 737 from his film producer friend. How many countries did he have to negotiate with for the air space if the pilot took the shortest flight route?Click to see the puzzle answer
Mysterious BehaviorNY apartment building supervisor noticed that a boy who frequently visited his grandparents always rode to 9th floor and then walked up to the 15th floor where his grandparents lived. On the way down boy always rode elevator all the way from 15th to the ground floor. What can explain this suspicious behavior?Click to see the puzzle answer
White House DinnerThree White House chefs can prepare sixtyperson dinner in six hours. Two of the chefs caught a flu virus and had to stay at home. Will the remaining chef be able to prepare tonight's dinner for one hundred and twenty people all by himself?Click to see the puzzle answer
Root Beer ExplosionOne morning you and a friend decide to make homemade Root Beer. You mix the ingredients, tightly close the cap on the bottle and observe this cool growing substance. The instructions say that every cell is dividing by half every minute creating two new cells of the same size as the original. With this speed, by 10pm that day you would manage to grow half a bottle of this substance. How long would it take until this bottle fills up and explodes?Click to see the puzzle answer
The smartest oneDavid Letterman, Jay Leno and John Stewart have been sitting and arguing who is the smartest. A beautiful lady passed by and mentioned that she could resolve their conflict. In my purse I have 2 white hats and 3 black hats. Close your eyes, then open and guess which hat I put on you. All three men closed their eyes and lady put black hat on each of them. They open their eyes and thought for a long time. Then one screamed that he figured out that he has a black hat. How did he do it?Click to see the puzzle answer
Brooklyn Bridge MeetingA man traveling from Brooklyn to Manhattan was surprised to see his friend walking toward him. The friend was accompanied by his wife, their daughter, daughter's three kids and a nanny. One of the granddaughters had a dog on a leash, another was holding a doll. How many people in total were traveling to Manhattan?Click to see the puzzle answer
Cake Design PuzzleYou are making a cake, but have only few strawberries for decoration. What shape should you choose for your cake (square, rectangle, circle, triangle) if you want the largest cake possible with strawberries placed around the cake's perimeter 1 inch apart?Click to see the puzzle answer
Two firemenTwo firemen entered a local Pharmacy and one of them claimed to be a father of the other's son. Could this be true?Click to see the puzzle answer
Her Bag FetishShe loves them all: red or brown, shoulder or hand design, big or small, leather or plastic. She buys them occasionally. Last time she counted, she had three quarters of their number plus three quarters of a bag. Does she really have a bag fetish?Click to see the puzzle answer
The unusual Indy 500 raceThree Indy 500 racers were standing and chatting after the big race. One of them, Danica Patrick, mused that it could be great to have a race where the winner is the one who finishes last. In fact, she said, I will give $100,000 to any of you two, whose car will come last to the finish. Hearing this, one of the racers jumped into the car and put the pedal to the metal. She won. How?Click to see the puzzle answer
How drunk is your friend?Imagine you are visiting your friend in college. In his dorm room you notice a completely full bottle of an unlabeled liquid smelling like alcohol. The next day, the bottle is partially empty with a temporary cork in it. You would like to find out how much has been consumed exactly. How could you do it without leaving any clues? You happen to notice a ruler on your friend's desk...Click to see the puzzle answer
Party DilemmaYou are organizing a birthday party for a friend and trying to figure out seating arrangement. If you would split all the guests across two long tables, one person will be left out. If you would seat all the guests in three big tables, one person will still be left out. Arranging for four equal tables, there still be one person left out. If you set five tables, four people will be left out. Six tables  one person left out. Finally, you see that splitting all the guests across seven tables will work perfectly. How many guests are invited to this party?Click to see the puzzle answer
The Secret MeetingAt the recent UN meeting, our President decided to invite a number of other party leaders for a private meeting. No one knows who exactly and how many people were invited, but rumor says it that 78 handshaking moments have happened. Every leader entering the meeting was approaching everyone already present in the room and shaking hands. How many people were invited?Click to see the puzzle answer
The Running PuzzleYou and your noncompetitive friend are running on an oval track in opposite directions. How would you know whether you are running faster than the friend?Click to see the puzzle answer
Soup AdventureYou are making a bean soup. You put 1 cup of beans, 3 cups of water and starting to boil the pot. The package says that beans will grow 2 times in diameter by the time they are ready. Your soup already takes two thirds the pot. Will it overflow?Click to see the puzzle answer
Vegas or Egypt?Imagine that you have been captured by a UFO, and after some time deposited back to earth. You open your eyes and see the sun straight above you, a palm tree, and a big stone sphinx. How do you know whether you are in Las Vegas or in Egypt?Click to see the puzzle answer
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