I look at you, you look at me I raise my right, you raise your left. What am I?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

O_er_t_o_

Complete the missing letters of the given word.

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

How many times in a given day, minutes and hour clock comes in a straight line ?

81 x 9 = 801. What must you do to make the this equation true?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

You along with your friend are standing in front of two houses. Each of those houses inhabits a family with two children.

Your friend tells you the below two facts:
1) On your left is a family that has a boy who likes accounts but the other child loves science.
2) On the right is a family with a seven-year-old boy and a newborn baby.

You ask him, "Does either of the family have a girl?"

To this, he replies, "I am not quite sure. But can you guess that? If you are right, I will give you $500."

Which family do you think is likely to have a girl?