Ann Logan

Most designs supposed to be done using two strands of embroidery floss. But the floss is usually sold in six strand packaging.
So before threading your needle, you should separate all the 6 strands.
To do it just cut somewhat about 15”-18” (35 - 45 cm) of the thread. Hold it near the top with one hand allowing the bottom to untwist. Now pull each ply upward with the other hand. Carefully - one at a time.
Combine the necessary number of strands (typically two) and save the remaining for the next usage.

If you are stitching using aida cloth that already has holes, you don’t need super sharp needles. More then that, you should prefer the rounded tip of a tapestry needle to ensure you don't accidentally split the fiber you're stitching with.