Answer:
You use a knife to slice my head but you weep beside me when I am dead
I go up but never come down. What am I?
I am your most powerful weapon; I come before your eyes. I help you seek the truth, yet I often give you lies. What am I?
I am heavy forward but backward I am not. What am I?
I come in different colors and shapes. Some parts of me are curvy some are straight. You can put me anywhere you like but there is only one right place for me.
Once you have it, you want to share it. Once you share it, you donβt have it. What is it?