what are the answers for the sudoku challenge?

Answer 1

Do you mean this challenge?

http://www.thousandsudokuchallenge.com/

Here's the first solution:-

327 194 658
846 325 179
519 687 243

172 563 894
653 948 721
498 712 365

764 851 932
985 236 417
231 479 586

Answer 2

in each line of a soduko table, there are 9*9 cells that in each line u have to write a number between 1 to 9 and none of them van be writen twice and in each 3*3 table u have to use the numbers once.