Riddle Me This!

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Across
  1. 4. Forward, I am heavy.Backward, I am not.What am I?
  2. 6. I’m light as a feather, yet the strongest man can’t hold me for much longer than a minute. What am I?
  3. 9. I whirled with a tug of string, spinning joy into lazy afternoons. Worn-out palms and dusty streets were my stage. What am I? (Hint: an old-school favorite toy)
  4. 10. I can be cracked, made, told, and played. What am I?
  5. 11. I was a popular show in the 90s, where kids would travel through a magical door to solve problems and riddles. What’s the name of the show? (Hint: A wise king and a clever ghost solving moral puzzles in every episode.)
  6. 13. I have keys but open no locks. I have space but no room. You can enter, but you can’t go outside. What am I?
  7. 15. He solved mysteries with his gang and a van painted green and blue. Spooky creatures and unmasking, what did they always do? Jinkies! Who am I hinting at, can you deduce? (Hint: A mystery-solving dog who’s always scared and loves Scooby Snacks.)
Down
  1. 1. The more you have of me, the less you see. What am I?
  2. 2. I’m the clever old man with a quick wit, always solving problems with my brain, not my fists. With my loyal companion rocket by my side, I’ve been solving mysteries since the 1970s. Who am I? (Hint: My brain works faster than a computer, and Rocket the giant is my buddy.)
  3. 3. I was the first Indian superhero on TV, wearing red and blue, saving the day. Who am I?
  4. 5. I’m full of holes but I still hold water. What am I?
  5. 7. I am always hungry, I must always be fed. The finger I touch, will soon turn red. What am I?
  6. 8. The person who makes it, sells it. The person who buys it, never uses it. The person who uses it, never knows they're using it. What is it?
  7. 12. What begins with T, ends with T, and has T in it?
  8. 14. I was the ultimate "catchphrase" of a 90s sitcom character, often heard with a loud, "How you doin'?" Who was the character?