School - represents lessons learned about life.

Friends - represent your social support system, and how you relate to the people you are closest to.

House - A house usually always represents you, or rather 'the self'...your body and the attributes of your personality. They symbolize your emotional and psychological 'self'. All of your experiences, stages of development, and parts of your conscious and subconscious life may be represented by that house. The house may be representing issues concerning a particular dilemma in your life, or it may be more general and comprehensive.
That the house is haunted, it suggests the you feel 'haunted'...that you are experiencing some fear or guilt about your past activities and thoughts.

Stairs - Going up and down the stairs could mean several different things. It could represent changes in consciousness, movement from one inner plane to another, or a change in understanding. In a more material sense, it could represent a rise or fall in economic or social status and the general efforts that are required to accomplish life's small and large goals. Climbing may represent an achievement of your ambitions and a movement in a positive direction. Descending may symbolize your doubts or a period following hard work and achievement of a significant goal. Generally, dreaming of ascending a stairway connotes movement in a positive direction while descending is indicative of a down period or negative flow of ideas or actions.

Strangers - If the person reminds you of someone you know.. think about your relationship with him or her, and the issues that the dream has brought up, or how you relate to the person that is being represented. If these people are totally unrecognizable (they don't remind you of anyone you know)... they would represent different, and unknown, aspects of yourself. They are extensions and projections of your own subconscious, and personality. Alternately, a stranger may represent an unknown fear, or danger, you feel in your waking life.

Game - traditionally means a time of relaxation and ease, wherein one can regather his or her resources. But in this day and age, it could be a pun, indicating that someone is 'playing games' with you. It may also be a warning that you need to change your careless lifestyle which interferes with your personal growth.

Dead people - usually represent your past, and things your life you want to be dead....old habits, bad attitudes, bad memories, embarrassments, bad relationships, etc.

Psychic - represents your desires to know the unknown, your fate and hopes. You may be experiencing anxieties about the future and in achieving your goals. Additionally, you may feel a lack of control in the path that your life is taking.

Windows - represent your points of view, perspectives and glimpses of insight. Windows in our houses allow us to see the world on the out side, the windows in our dreams may encourage us to better see the world within ourselves, as well as the world outside.
Looking out the window suggests you are, or need to be, aware of the world around you.
An open window suggests that you are opening your eyes to a current situation in your waking life.

Roses - symbolize love, passion, femininity, and romance.

White - White is a feminine color. Symbolizing virginity, purity, well earned success, honesty, virtue, innocence, peace, happiness, joy, transformation, cleanliness, dignity, awareness, clarity of mind, hope, and light feelings, but also emotional coldness and immaturity.
White in a dream might possibly be a reminder to resolve special situations and problems.

Black - the color of the subconscious, of sinking into the darkness, or mourning. Black is masculine; it is the color of night. Black stands for limitation, hidden things, despair, depression, things that are considered 'taboo', conservatism, old age, melancholy and sacrifice(the giving up of things to make you, or someone else happy), your shadow (an aspect of your personality that is hidden, unknown and/or repressed within your subconscious mind).

You being dead - represents the ending of an old way to make way for self renewal. The message may be that your old self needs to be left behind. This may mean that you must stop carrying around with you the crippling burden of your past (irrational, or guilty feelings, or any other negative emotions) and, instead, you must open yourself to what the present moment is offering. Alternatively, the "old self" may be old attachments, habits, ambitions, values, or goals... in which case the dream is telling you that the only way forward for you lies through giving these up and looking deeper within yourself for better values, etc.
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Have you done something that you feel ashamed of, or guilty for?
Have you been spending too much time with friends and not enough time on your responsibilities?
Are you worried about your future?
Is there someting you would like to be rid of...or some part of yourself you'd like to change?
Do you feel that someone is not being truthful with you, that they are trying to mislead you?

Hope I could help, good luck!