Integer expression expected

I need some help with this

if [ $var -eq 'EASY' ]

but then it says

 line 11: [: :: integer expression expected

I don't know what I'm doing wrong

-eq is used for numeric comparisons. = should be used to string comparisons. You should also quote variables in a test.

i.e.

if [ "$var" = EASY ]; then
  ...
fi