The first riddle on this board - have fun!

MLS · Beitrag von **MLS** » 4. Mär 2006 22:14

This riddle, one of the world's oldest, is still good for starting arguments. A man is looking at a portrait. "Whose picture is that?" someone asks, and the man replies: "Brothers and sisters have I none, but that man's father is my father's son." At whose picture is the man looking?

Nia · Beitrag von **Nia** » 4. Mär 2006 22:38

Tony Blair

MLS · Beitrag von **MLS** » 4. Mär 2006 23:01

Well - nice try but... not really!

Sonja · Beitrag von **Sonja** » 4. Mär 2006 23:04

He looks into his face?!?

Cliff · Beitrag von **Cliff** » 5. Mär 2006 00:11

Sommerset hat geschrieben:no, it is his son, geezz....that was great

Are you 100 percent sure?

MLS · Beitrag von **MLS** » 5. Mär 2006 00:18

You are right!

You just need to read it carefully and then it is not that confusing as it seems to be.

Cliff · Beitrag von **Cliff** » 5. Mär 2006 00:37

Have I ever told you that I hate mathematics and reasoning?

MLS · Beitrag von **MLS** » 5. Mär 2006 00:44

Well, that's not easy...

I list some facts to make the riddle easier to solve:

4 years ago:
John = Jeff + 12
Jack = Jeff x 2

Today:
Jack = Jeff + 12
John = Jeff x 2

It looks quite similar. I've never been good at mathematics, so help me, please!

Cliff · Beitrag von **Cliff** » 5. Mär 2006 00:52

Is there a reason why their names are pretty short and start with a j?

Cliff · Beitrag von **Cliff** » 5. Mär 2006 00:54

mission accomplished

MLS · Beitrag von **MLS** » 5. Mär 2006 01:19

Second try (with the help of my boyfriend

)

(A) Jack = Jeff + 12
(B) John = Jeff x 2
(C) John = Jack + 4
(D) (Jack - 4) = (Jeff - 4) x 2

(B) = (C) = John:
Jeff x 2 = Jack + 4
=> Jeff = (Jack + 4) / 2

(A):
Jack = ( (Jack + 4) / 2 ) + 12 | -12
Jack - 12 = ( (Jack + 4) / 2 ) | x 2
2 Jack - 24 = Jack + 4 | - Jack - 4
Jack - 28 = 0
=> Jack = 28

(A):
28 = Jeff +12
=> Jeff = 16

(B):
John = 16 x 2 = 32

(actually my boyfriend solved it all alone)

MLS · Beitrag von **MLS** » 5. Mär 2006 14:56

Well... thank you

Who wants to be the next?

MLS · Beitrag von **MLS** » 7. Mär 2006 22:06

I found another riddle. Have fun!

There is a number. If it is not a multiple of 4, then it is between 60 and 69. If it is a multiple of 3 it is between 50 and 59. If it is not a multiple of 6 it is between 70 and 79. What is the number?

CID · Beitrag von **CID** » 8. Mär 2006 11:21

A man on his way to town comes to a fork in the road and he doesn't know which way to go. There is no signpost but there is a house where two brothers live. One brother always tells the truth, and one always lies, which the lost man is aware of but he does not know which one is the liar.
The lost man is supposed to aks only one question to only one of the brothers to learn the right way. What might this question be?

Cliff · Beitrag von **Cliff** » 8. Mär 2006 12:58

...and they called him Einstein.