Sudoku

The first one is really easy.

The numbers 1 to 4 must be in each row column and group of 4 cells.

Crossword

ACROSS
1. Not death (4)
5. Half a dozen (3)
6. Every (3)
7. Between thirteen and nineteen (4)

DOWN
2. Island (4)
3. Document (4)
4. Previous (2)
6. @ (2)