21. Can't see the wood for the trees? That could be the problem here! 寸 公 交 目 ト


Answer: 

寸  SUN - unit of length

公  KOU, ooyake - public

交  KOU, maji(ru), kawa(su) - mix

目  MOKU, me - Eye

ト  katakana "to"

Adding a tree to these characters lets them branch out in a new direction!

村  SON, mura - village

松  SHOU, matsu  - pine

校  KOU - school, printing proof

相  SOU, SHOU, ai - aspect, minister, partner

朴  BOKU - simple, plain