- Precisely one of these statements is untrue.
- Precisely two of these statements are untrue.
- Precisely three of these statements are untrue.
- Precisely four of these statements are untrue.
- Precisely five of these statements are untrue.
- Precisely six of these statements are untrue.
- Precisely seven of these statements are untrue.
- Precisely eight of these statements are untrue.
- Precisely nine of these statements are untrue.
- Precisely ten of these statements are untrue.
I'm posting one puzzle, riddle, math, or statistical problem a day. Try to answer each one and post your answers in the comments section. I'll post the answer the next day. Even if you have the same answer as someone else, feel free to put up your answer, too!
Monday, May 23, 2011
Which of the following statements are true?
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brain teaser
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At most one of the statements can be true, because any two true statements contradict each other. If zero of the statements are true, then statement 10 is true, a contradiction. One statement must be true, the others must be false. Statement 9 is true.
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