Can you find the key in the picture below?

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?

Which country gets ill every time?

People put me on the table and cut me but do not eat me. What am I?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

How many times do a clock's hands overlap in a day ?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

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.

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

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