Answer:
A standard dimension for sandwiches and rulers
A mechanism to discover who is following you.
What can be seen but not touched?
What pulls you down and never lets go?
What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?
I am a room that has a roof but no walls. What am I?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?