Question 696880
If you add up 9 odd numbers, you'll will always get an odd number.
But 90 is an even number, so it's impossible.  Unless you mean a
funny answer like this:

8 groups of 1 box each and 1 group with 82 boxes, and if somebody 
complains that 82 is not odd, you can say "That's an odd number of 
boxes to be putting into one group".

Edwin</pre>