MINDBENDER

1. Sandy gave Joseph half of her trading cards. Joseph gave Marina half of the trading cards he got from Sandy. Marina kept seven of those and gave the remaining eight back to Sandy. How many trading cards does Sandy have now?

2. What connects goblin, Cyprus and the moon?

3. How might one scrape a BAD EAR?

4. Which is the odd one out: halogen, lanthanide, sodium, neon?

5. Crack the code to find three percussion instruments: OCTKODC, ENCXGU, OCTCECU.