Riddle: I am something that you can you read but not see. I'm with you all the time but sometimes I'm hard to find. What am I?
Answer: Time.
Riddle: What is not real but used everyday. It is immeasurable yet it's measured anyways. It has no stop because it never started. You can not see me but you can read me.
Answer: Time.
Riddle: I am fast and little, and I can attack anything, I can fly to my home while I have a job, I live with my honey. What am I?
Answer: A bee!
Riddle: You can't touch me nor see me, but I always pull you, keeping you heavy. When I am gone you will always float. What am I?
Answer: Gravity.
Riddle: There are 55 marbles and 100 bags. You need to put every marble in a way that the 1st bag has 1 marbles, the 2nd bag has 2 marbles and so on. How many bags will you need to use 55 marbles?
Answer: 55 bags. Put a marble in the first bag then the bag goes in the second bag with 1 marble, making the second have 2 marbles. Repeat this until use 55 marbles, in total,the 55th bag has 55 marbles.
Riddle: One side up because there is nothing there, the other side is down cuz lead was placed here. Then I lead the other now everything is fair. What am I?
Answer: Scale/balance.
Riddle: What do you call a dirty age?
Answer: A MESSage
Riddle: I'm an object; good at drawing. I draws without using any drawing instrument, yet I can draw even better and faster than the world's best artist. But what I will draw won't stay permanent and what I draws may see me or not. What am I?
Answer: A mirror. Humans can see it but objects cannot.
Riddle: I am a word. My first four letters refer to a mark on a person's skin; three letters found in the middle refer to what all mathematics students know. My last four letters refer to a place where everyone love to be, and my whole is familiar to all economics students. I am an eight letter word. What am I?
Answer: Scarcity
Riddle: A woman is walking down a street night at a constant pace. As she passes the street light, she notices that her shadow becomes longer. Does the top of her shadow move faster, slower or the same when the shadow is longer as when it is shorter?
Answer: This point maintains a constant speed, independent of the lenght of the shadow.