Government 
To dream about the government represents control and governance in your life. Think about what attributes define you. Are you greedy or do you lust for someone? Perhaps affection leads you through life. This dream could indicate how you view the world as a whole.
Book Store
To dream of a book store indicates that fictional and unrealistic ambitions will divert your attention from more important tasks and projects. These goals, if achieved, will prove fruitless and unfulfilling.
Electricity
To dream of electricity indicates the power created by life. You might require some recharging of your own batteries.
To dream that you have lost electricity suggests that you don't have the proper foresight or vision about a particular circumstance.
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.