I come in a cone but I am not food; I will be skewed if you screw with my hue; I come by the millions but you can probably only name a few. What am I?

Answer: Colors.

Solution:

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Colors.

What do you call a sleeping cow?

Answer: A bull-dozer.

Solution:

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A bull-dozer.

What is the 4 digit number in which the first digit is one-fifth of the last, and the second and third digits are the last digit multiplied by 3?

Answer: 1155.

Solution:

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1155.

George, Helen, and Steve are drinking coffee. Bert, Karen, and Dave are drinking soda. Using logic, is Elizabeth drinking coffee or soda?

Answer: Elizabeth is drinking coffee. The letter E appears twice in her name, as it does in the names of the others that are drinking coffee.

Solution:

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Elizabeth is drinking coffee. The letter E appears twice in her name, as it does in the names of the others that are drinking coffee.

If I drink, I die. If i eat, I am fine. What am I?

Answer: A fire.

Solution:

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A fire.

When a girl was 7, her sister was 14, now the girl is 10. How old is her sister now?

Answer: 17

Solution:

Correct Answer: 17

Condition 1: 

Girl age = 7

Sister age = 14

So here age difference is 7 years

Condition 2:

Girl age =10

so Sister age = Girl age + 7=10+7=17

Hence Sister age is 17