Be active and find the killer in the picture Riddle below.

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

What four weights can be used to balance from 1 to 30 pounds?

What jumps when it walks and sits when it stands?

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

What does an Island and the letter T have in common?

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

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?

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

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.