Riddles

Was a man killed in his round house by his butcher, who was chopping meat, his gardener, who was pulling weeds, or his butler, who was dusting the corners?
What do poor people have that rich people want and we would die if we ate it?
The more you take,the more you leave behind. What am I?
What disappears the moment you say its name?
I can be long, or I can be short. I can be grown, and I can be bought. I can be painted, or left bare. I can be round, or square. What am I?
What kind of dress can never be worn?
How can the number of four be half of five?
If you bite me, my sender will eat you. What am I?
Before Mount Everest was discovered, what was the tallest mountain?
Trump and Putin are about to die. Who is safe?