Fax Machine 
To dream about using a fax machine suggests that your subconscious is sending you pieces of information. These communications will prove to be genuine.
Mathematics
To dream about mathematics suggests that you are attempting to assess an issue and discover the best way to resolve it. You should use practical and sensible reasoning rather than your instincts and feelings.
To dream that you are unable to solve a mathematical problem or equation is a reflection of an issue that you are unsure about. This dream may be leading you towards a resolution.
Post Office
To dream you are in a post office suggests that your inner self or subconscious is telling you something of importance. It may be in relation to getting in touch with someone. It may also mean reinforcing what you believe in.
Rolling Pin
To dream of using a rolling pin denotes creative talents and high morale which makes you productive and optimistic in your dealings.
To dream that you are using a rolling pin as a weapon represents your swift decision making and temperamental nature.
Rubber Band
To dream of a rubber band denotes a need to be more flexible in your dealing with others. You need to stretch the way you react, imagine, or conceptualize plans.
To see a rubber band snap signifies that you are overburdened. You have overstretched yourself.
Screwdriver
To dream of a screwdriver signifies your desire to repair a damaged situation or relationship. It may also represent a person in your life who needs your help to deal with certain issues.
Slow Motion
To dream that you are moving in slow motion indicates that you are currently facing hardships and obstacles. There may be a situation or issue that is causing you incredible anxiety and anguish.
Wind Chimes
To dream of wind chimes, either seeing or hearing them, represents tranquility and harmony. It may further symbolize the passage of time or favorite memories.
Hitchhiking
To dream that you're hitchhiking signals feelings of unworthiness. Perhaps you owe your current success to others.
Horseradish
To dream of seeing or tasting horseradish indicates that you came on too strong with your words, or offended someone with your hurtful remarks.