Game

1- Use 1,1,9,9 and -,+,: to make an equation that equals 10.
(use only one time for each).

2- Year 2002 was begun with Tuesday, so from that year to 2015 which year that can be begun with Tuesday too?
3- Suppose that e, i , n , t are the integers number different from each other and positive that :

N+i+n+e = 9
T+e+n = 10

if i=1 what is the value of t ?

4- 5^k+6^l+7^m+11^n=2006 ( k, l, m, n are integers number ). Find k+l+m+n ?

5- Suppose S, A, Y, O, N are integers number ( 0,1,2,...,9 ) one letter replaces by only one number.
so can U find the number SAYON if we know that
SAYON+SAYON+SAYON+SAYON=NOYAS