What is wrong in the below Picture?

What's a single-digit number with no value?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

What runs around the whole yard without moving?

Solve this tricky question. You are trapped in a forest. With you, you have a gun preloaded with two bullets in it. In front of you, there is a tiger, a leopard and a jaguar.

How do you survive?