If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

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

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Who is that with a neck and no head, two arms and no hands? What is it?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?