1. 10Puzzles
Yan

2. Q1 Where was A born ?
• The are A ,B,C three students . One was born
in Dublin ,One was Born in Cork , One was
Born in Galway. They are studying different
subjects in the college . Economy ,Computing
,and digital games . A is not studying Economy
,B is not studying digital games , the person
who is studying digital games was born in
Dublin ,the one who is studying Economy was
not born in Cork ; B was not born in Galway
.where was A born ?

3. ANS
• Dublin

4. Q2
• 10 orange give to 7 people , how to separate
them in the most fair way ?

5. ANS
• Orange Juice

6. Q3
• E B C + ADE = BFF (A.B.C.D.E.F numbers
between 1 to 7)

7. ANS
• 145+321 =466 E=1 D=2 A=3 B=4 C=5 F=6

8. Q4
1 to 9 in sequences if apply same rule as
sample one ,how to fill the rest 8 number
in second table
9 5 7
8 1 3 5
4 6 2

9. ANS
• 4 9 2
• 3 5 7
• 8 1 6

10. Q5
• A get out his house and turn left .across front
intersection and turn right at second
intersection .B get out his house ,turn left and
turn right at first intersection .walk along to
street .B has seen A walking pass in front of
him .A’s house face to the South Which
direction B’s house face to ?

11. ANS
• EAST

12. Q6
• 928(11)475
• 496( )326

13. ANS
• 12

14. Q7 secret code method is called a
Keyword Cipher
• The Key word are fun game
• C ICHA SBA DEFG
• What is mean cichasbadefg

15. ANS
• ABCDEF GH I JKLMNOPQRSTUVWXYZ
• FUNGAME BCDHIJ K LOPQRSTVWXYZ
• I LIKE THE GAME

16. Q8 Lion and sheep

17. • Five lions can eat 7 sheep in a week time
• On Mongolian grassland , there are 97 sheep
live in a group. when will the last sheep be
eaten ?

18. ANS
• There is No lion in Asia

19. Q9
• How many times of 6 appears from 1 to 99( 6
and 96 are excluded)

20. ANS
• 18

21. Q7
• There are some birds in a cage and turtles and
foxes,. The first day, counting the birds and
foxes .there are 35 heads and 94 feet . How
many birds and how many foxes left a week
later ?

22. ANS
• x+y=35
• 2x+4y=94
• （x+y=35）×2=2x+2y=70
• (2x+2y=70)-(2x+4y=94)=（2y=24）
• y=12
• y=12 (x+y=35）
• x+12=35
• x=35-12
• x=23 Foxes left 12 ,birds 23 .
• One week later ? Foxes left 12.

23. Q10 Birthday Cake
• There are too many guest come to your
birthday party
• You need cut cake into as most pieces as
possible , cut must be straight line .no more
than 4 cuts.

24. Ans
• Do not know what hell is the cake like !