Two flexibility tests

If you've begun or want to begin regular stretching exercises, these tests will give you a good indication of how flexible your body is.Source: Sport Fitness Advisor

Sit and reach tests for the lower back, hamstrings
Sit against wall with legs flat
Have a helper put box against your feet and ruler on box
Trunk twist
Tests torso, shoulders
Put a mark on wall; stand in front of mark, an arm's length from the wall and facing away from the mark 
Hold arms level; twist body and knees as far to right as possible without moving feet and put mark on wall 
Repeat on left side and average your results