For instance, if you add an "R" you'll go from fog to frog!
Keep in mind, one photo could be described by many words.
FOR MORE… Try the previous brain teasers:
EASY: Can You Guess Which Letter Has Been Added? #2
MEDIUM: Can You Guess Which Letter Has Been Added? #7
MEDIUM: Can You Guess Which Letter Has Been Added? #3
MEDIUM: Can You Guess Which Letter Has Been Added? #1
MEDIUM: Can You Guess Which Letter Has Been Added #6?