My first is in riddle, but not in little.
My second is in think, but not in brink.
My third is in thyme, but not in time.
My fourth is in mother, but not in brother.
My last is in time, but not in climb.
Answer: Rhyme.
This riddle appears in the following downloadable PDF files:
Can you solve one of the most famous logic puzzle ever?
Memory Matching game for kids, adults and seniors.
Connect the matching tiles and pop them all.