1:Find the letter which will end the first word and start th

1:Find the letter which will end the first word and start the second.
Exanple peac(h)ome
car( )ive pla( )ice
2:Use from 1 to 8 and from -1 to -8 to fill in the empty boxes so that every line:including the diagonals,add up to 0
3:The following letters stand for different numbers.Work out what they are,O stands for 4
P O T A T O
+T O M A T O
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S A L A D S