Good Riddles

Question: I am the beginning of sorrow, and the end of sickness. You can't express happiness without me, yet I'm in the midst of crosses. You may find me in the sun, but never in the evening. What am I?

Question: You are trapped in a haunted house with no electricity. There are four doors to get out of the house only one is safe. In one door a man will stab you, in another you will get electrocuted, in another one you will get shot at, in the final one it is filled with vicious dogs. Which door is safe?

Question: Men are just as small as stars to me but men can see me while the stars cannot. I am a reflection of the ocean and fire but never earth though without an earth you cannot have me.

Question: How much does the brick weigh if a brick weighs 1kg plus a half brick?

Question: a mans car gets stolen but all the windows are up and the doors are locked there is no holes or breaks in the car how does it get stolen?