When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

What demands an answer, but asks no questions

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

I make two people out of one. What am I?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?