What is wrong in the below Picture?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?