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Q:

Logical puzzle

Miss Anne has eleven kids in her class. She has a bowl containing eleven apples. Now Miss Anne want to divide the eleven apples to the kids, in such a way that a apple should remain in her bowl. How can Miss Anne do it?

Answer

Ten kids will get each one apple. The eleventh kid will get the apple with the bowl.

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Subject: Logic Puzzles

Q:

Two Fathers and Two Sons Riddle

Two fathers and two sons sat down to eat eggs for breakfast. They ate exactly three eggs, each person had an egg. The riddle is for you to explain how

Answer

one of the 'fathers' is also a grandfather. Therefore the other father is both a son and a father to the grandson. In other words, the one father is both a son and a father.

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Subject: Math Puzzles

Q:

Solve the following puzzle

You are going to visit your grandmother on Mother's day. You want to give her two cakes. However, to get to her house you must cross seven bridges. At each bridge is a troll who demands ½ of all of your cakes as the price to pass. However, this troll, being a nice troll, feels bad and gives you back 1 of the cakes that he took.

The puzzle to solve: How many cakes must you leave with to be able to give your grandmother 2 cakes

Answer

Do the math and you will see that this puzzle is based on the fact taht $\frac{1}{2}$ (2)=1 and 1+1=2

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Subject: Math Puzzles

Q:

Puzzle : Identical Balls

There are 8 identical balls. In that one of the ball is overweight. There are only two chances to weigh in the weighing machine. How to find the overweight ball?

Answer

First weigh 3 against 3 balls. If the ball contains among these six balls, then take the three balls which weighed over, and weigh the ball 1 against 1. If the balls are not equal and any one of the ball weighs more, that is the overweight ball, else the one among the three which is not weighed is the ball. If the 3 against 3 balls were equal, then weigh the 2 balls, then the overweight ball will be found.

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Subject: Math Puzzles

Q:

Puzzle : Blueberries and Cups

Maria have some blueberries and some cups. If she put 9 blueberries into each cup she will have two cups left. If she put 6 blueberries into each cup she will have three blueberries left over.

Answer

The number of blueberries is equal to number of cups multiplied by 4 minus one left.

That is :

B = 9(C - 2) -> (1)

Then the number of blueberries will be equal to the number of cups times three plus one left.

That is :

B = 6C + 3 -> (2)

Now substitute the 1st and 2nd equations:

B = 9(C - 2)

B = 6C + 3

C = 7, B = 45.

Therefore Blueberries = 45 and cups = 7.

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Subject: Math Puzzles

Q:

Puzzle : Bridge Crossing

Jim, Jeanne, Louis and Anne wants to cross the bridge at night. They have only one torch light with them. Only two can cross the bridge at a time. They need torch light to cross the bridge. Each of them walks at a different speed. Jim needs 1 minute, Jeanne needs 2 minutes, Louis needs 5 minutes and Anne needs 10 minutes. A pair must walk together at the rate of the slower person. How these people can cross the bridge within 17 minutes?

Answer

First Jim and Jeanne walks across the bridge, it takes 2 minutes.

Jim walks back with the torch light, which takes 1 minute.

Then Louis and Anne walk on the bridge, which takes 10 minutes.

Jeanne comes back with the torch light, it takes 2 minutes.

Finally Jim and Jeanne walks across the bridge, which takes 2 minutes.

Total = 2 + 1 + 10 + 2 + 2 = 17 minutes

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Subject: Math Puzzles

Q:

A watch which gains uniformly is 2 minutes low at noon on Monday and is 4 min. 48 sec fast at 2 p.m. on the following Monday. When was it correct?

A) 2 p.m. on Tuesday	B) 2 p.m. on Wednesday
C) 3 p.m. on Thursday	D) 1 p.m. on Friday

Answer & Explanation Answer: B) 2 p.m. on Wednesday

Explanation:

Time from 12 p.m. on Monday to 2 p.m. on the following Monday = 7 days 2 hours = 170 hours.

The Watch gains $(2 + 4 \frac{4}{5})$ min. or $\frac{34}{5}$ min.in 170 hrs.

Now, $\frac{34}{5}$ min.are gained in 170 hrs.

2 min.are gained in $(170 * \frac{5}{34} * 2)$ hrs=50 hrs

Watch is correct 2 days 2 hrs. after 12 p.m. on Monday i.e., it will be correct at 2 p.m. on Wednesday

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