Question: divide a 8.5 x 11 piece of paper into three equal parts.
Option 0: Place the paper into landscape mode.  Take the upper left corner and begin to fold it to the lower right.  Take the upper right corner and fold it down to the lower left.  Then fold in half length wise.  Unfold the sections.
Option 1: Place the paper into landscape mode.  Take the left edge and begin to fold it onto itself.  The left edge will be a little beyond the half way length of the paper.  Bring the right edge over the top of the left.  Make both lengths match then crease the folds.
Answer: 1