Difficulty Popularity

You are given with six marbles of three different colors. Arrange them in a manner that each one of them touches all four marbles of different colors.

Difficulty Popularity

Imagine a situation in your mind. You are playing a coin game with your friend where you have pre-decided the sequence that you require. The coin is fair and you both keep tossing it till you get the desired sequence.

The predefined sequence for you is H T H.

The predefined sequence for your friend is H T T.

You keep tossing the coin and writing it down till you get the required sequence. You play several games and at the end, the one with the average score less will win.

Game 1 result:

You: H T T H T H

Your score: 6

Your friend: H T H H H T H H T T

Your friends' score: 10

Game 2 result:

You: T T H T T H H T H

Your score: 9

Your friend: T T H H T H T T

Your friends' score: 8

Game 3 result:

You: T T H H T H

Your score: 6

Your friend: H H T H T T

Your friends' score: 6

Now, after playing 3 games, your score is 7 (average) and your friend's score is 8 (average). Assume that you keep playing like this for several many games, what of the following outcomes are you expecting at the end?

a) Your average score is lower and you win.

b) Your friend's average score is lower and he wins.

c) Both have equal scores and the match ties.

The predefined sequence for you is H T H.

The predefined sequence for your friend is H T T.

You keep tossing the coin and writing it down till you get the required sequence. You play several games and at the end, the one with the average score less will win.

Game 1 result:

You: H T T H T H

Your score: 6

Your friend: H T H H H T H H T T

Your friends' score: 10

Game 2 result:

You: T T H T T H H T H

Your score: 9

Your friend: T T H H T H T T

Your friends' score: 8

Game 3 result:

You: T T H H T H

Your score: 6

Your friend: H H T H T T

Your friends' score: 6

Now, after playing 3 games, your score is 7 (average) and your friend's score is 8 (average). Assume that you keep playing like this for several many games, what of the following outcomes are you expecting at the end?

a) Your average score is lower and you win.

b) Your friend's average score is lower and he wins.

c) Both have equal scores and the match ties.

Difficulty Popularity

Four friends need to cross a dangerous bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

Difficulty Popularity

The puzzle is if the shopkeeper can only place the weights in one side of the common balance.

For example: if shopkeeper has weights 1 and 3 then he can measure 1, 3 and 4 only.

Now the question is how many minimum weights and names the weights you will need to measure all weights from 1 to 1000.

For example: if shopkeeper has weights 1 and 3 then he can measure 1, 3 and 4 only.

Now the question is how many minimum weights and names the weights you will need to measure all weights from 1 to 1000.

Difficulty Popularity

David and Albert are playing a game. There are digits from 1 to 9. The catch is that each one of them has to cut one digit and add it to his respective sum. The one who is able to obtain a sum of exact 15 will win the game?

You are a friend of David. Do you suggest him to play first or second?

You are a friend of David. Do you suggest him to play first or second?

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