1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

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

I always drive my customer away.

Who am I?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)