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Maths Brain Teasers

Q3 The barber of Seville shaves all of the men living in Seville. No man living in Seville is allowed by law to shave himself. The barber of Seville lives in Seville. Who shaves the barber of Seville?


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Q4 Which string of beads is the odd one out and why?

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Q5 Which of these matchstick men is the odd man out and why?

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Q6. 105 aliens attended the intergalactic meeting on earth.

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78 had two heads
28 had 3 eyes
21 had 4 arms
12 had 2 heads and 3 eyes
9 had 3 eyes and 4 arms
8 had 2 heads and 4 arms
3 had all 3 unusual features.

How many had none of these unusual features?

Q7 If 6 3 5 4 2 equals 5 2 6 3 4 .

What is B C D E F ?

Q8 Which does not conform with the others and why?

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Q9 What is X?
4  9  X  25

Q10 Whose face is wrong and why?

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