How can you leave a room with two legs and return with six legs?

What is the word or phrase?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

Why is the Hole below a Lock?

In the given picture, in how many ways can you read the word "Tiger"?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

I have Rs.50 and I spend it in the way as below.

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

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 ?