2012

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1. I mean the opposite of good, but if you change my first letter you have a religious leader. What am I?

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2. I am a student of a certain scientific discipline. My last four letters are a cloud of water droplets. Who am I?

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3. Remove my first 3 letters and you have a flower. I am an extremely unfortunate occurrence. What am I?

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4. My first half, if read backward, means dark and I am a period of each day. What am I?

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5. My last four letters denote a conservative. I am an established record. What am I?