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Total Brain teasers found 836 |
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Brain Teaser No : 00043
Professors Ahmad and Joshi are extremely strange persons.
Prof. Ahmad lies on Mondays, Tuesdays and Wednesdays, but tells true on other days of the week.
Prof. Joshi lies on Thursdays, Fridays and Saturdays, but tells true on other days of the week. - They made the following statements:
Prof. Ahmad: "Yesterday was one of my lying days."
Prof. Joshi: "Yesterday was one of my lying days too."
What day of the week was it?
- Both Professors looked very alike and one day they said to a visitor to their department :
First Prof: "I'm Ahmed."
Second Prof: "I'm Joshi."
Who was who? What day of the week was it?
- On another occasion, both Professors made the following statements:
First Prof: 1. "I lie on Saturdays."
2. "I lie on Sundays."
Second Prof: "I will lie tomorrow."
What day of the week was it?
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Brain Teaser No : 00063
Sita has six pairs of black gloves and six pairs of brown gloves in her drawer.
In complete darkness, how many gloves must she take from the drawer in order to be sure to get a matching pair (i.e. left hand and right hand golves of the same color)? Think carefully!!
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Brain Teaser No : 00537
There is a 4-character code, with 2 of them being letters and the other 2 being numbers.
How many maximum attempts would be necessary to find the correct code? Note that the code is case-sensitive.
Submitted by : Destructo_girl
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Brain Teaser No : 00615
A detective was investigating a crime. She interviewed the Musician, the Manager, and the Servant. Here are their statements:
Manager - "The musician is guilty."
Musician - "The manager or the servant is guilty."
Servant - "If the musician is innocent, the manager is guilty."
Two people were lying. Who commited the crime?
Submitted by : Colton Dennis
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Brain Teaser No : 00302
There are 20 people in your applicant pool, including 5 pairs of identical twins.
If you hire 5 people randomly, what are the chances you will hire at least 1 pair of identical twins? (Needless to say, this could cause trouble ;))
Submitted by : Tim Sanders
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Brain Teaser No : 00589
- The chicken came first.
- The egg came first.
- Statement I is false and Statement II is true.
If two of the above statements are false, what chance is there that the egg came first?
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Brain Teaser No : 00592
I offer to play a card game with you using a normal deck of 52 cards. The rules of the game are that we will turn over two cards at a time. If the cards are both black, they go into my pile. If they are both red, they go into your pile. If there is one red and one black, they go into the discard pile. We repeat the two cards flipping until we've gone through all 52 cards.
Whoever has more cards in their pile at the end wins. If there is a tie, I win.
What are your chances of winning this game?
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Brain Teaser No : 00703
Mr. Bush challenges Mr. Saddam to a game. They each get one penny and flip them at the same time. So on turn 1, they each flip their respective pennies. On turn 2, they flip them again, and so on until someone wins.
Mr. Bush is looking to get heads then tails. Mr. Saddam is looking to get heads then heads. So if Mr. Bush flips heads on any flip and then tails on the next flip, he wins. If Mr. Saddam flips heads on any flip and then heads on the next flip, he wins.
It’s not a speed race; they both flip at the same time, except they're only concerned with what appears on their respective coins. Are the odds of winning fair? If not, who has the advantage and why?
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