-------((( رِياضــــة ذِهْنـــية )))-------

From: Yousif Izzeldin [mailto:[email protected]]
Sent: Thursday, March 11, 2010 02:27 PM
To: Abdulrhman Al Shafie
Subject: Questions for training your mind

Salam Mr. Elshafie,

My name is Yousif Izzeldin. I am writing to tell you that I really enjoy your style of writing in Sudaneseonline and I usually agree with most of what your opinions. In my opinion, although saying I agree with you makes the following sentence worthless, I think most of your opinions are logical and you have a very nice way of arguing your way out of any trouble. Keep it up!

That is for you.

I have also enjoyed the post in Sudaneseonline dedicated to train the minds of the reader written by Ombadda. I have come up with the solution to your math riddle although it costs me some time. I was excited when I saw your new ones although the first three are not as good as the old one but I wanted to share the answers with you so you can keep adding riddles.

1- 7,9,13,21,37,59 ......2,4,8,16,32 addition
2-1,1,2,6,24,120, 720 .... (n-1) factorial
3-8,27,64,125,216... (n+1)^3
4-A ,E ,F , ?, I, K ,L,?,? This is nice... I think the answer is H,M,N. If it is, the clue is the shape of the letters
5-q,w,e,r,t,? I was lucky regarding this one. I was looking at the keyboard. The answer is y.

Thanks for your post and keep it up.
P.S. sorry for writing to your work e-mail but this is the email I found.
Regards
Yousif Izzeldin Kamil