25 selected brain teasers

25 selected Brain Teasers Compiled by SRG Oct 2008

Dots and balls 1. Connect nine dots using 4 straight lines without lifting the pencil . . . . . . . . . 2. A factory has 10 machines producing iron balls. All machines produce balls which are identical in appearance but one produces balls weighing 99 gms instead of 100 gms which is the standard. Identify the defective machine with one weighing

3-6 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],3. Identify the first letter of this 4 letter word_ E N Y 4. Find the next item in the series: OTTFFSS

7-8 ,[object Object],[object Object],7 With 6 matchsticks construct 4 equilateral triangles, each with its side equal to the length of the matchstick

9. Liars ,[object Object],[object Object],[object Object],[object Object],[object Object]

10. Balls again ,[object Object],[object Object]

11-14 Eggs to Gold 11.You have six eggs in a basket. How do you distribute them to six people so that one egg remains in the basket? 12.In a perfect sphere of cheese a hole of uniform diameter is drilled thru the centre. What is the quantity of cheese remaining? 14. Man weighing 90 Kgs has to take 3 gold balls of 5 Kgs in a boat that can take only 100 Kg. How? 13. Using 4 weights you have to measure any weight from 1 to 40. what weights will you choose?

15. The smartest one ,[object Object],[object Object]

16. Racing King ,[object Object]

18.Color of the bear ,[object Object]

19.Violinist ,[object Object],[object Object]

21. Five chains ,[object Object],[object Object]

23-24 23. Cryptogram: TWO + THREE + SEVEN= ______ TWELVE (No leading Zeros) 24. An emperor was born in 36 BC and lived for 100 years. How old was he on his birthday in 38AD?

25. Cyclists and Bee ,[object Object]

Answers 1-25 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

25 selected brain teasers

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25 selected brain teasers