After viewing the masterbrain, i thought i would share a puzzle which i have just completed. Here its is :

Between each of these numbers put one of the following to make 100.
Plus, subtract, divide and mutiply

1 2 3 4 5 6 7 8 9 = 100

E.g

1 + 2 - 3 + 4 x 5 - 6 x 7- 8 -9 = 81

TRY AND NOT USE A CALCULATOR , ITS MORE CHALLENGING!

Good luck! - If you think you have the answer PM me or something not to spoil it for others!

P.S Ronnie Rowlands' pillow is fantastc, you would be lucky to even touch it !