What is wrong in the below Picture?

I always drive my customer away.

Who am I?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

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?

Can you fill the blank with the correct number?

6 30 870 756030 _____

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

What number do you get when you multiply all of the numbers on a telephone's number pad?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Which is the correct shadow of the bird?