What occurs twice in a week, once in a year but never in a day?

Can you find the key in the picture below?

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?

Count the number of balls in picture below:

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

Who is that with a neck and no head, two arms and no hands? What is it?

Why is it very easy to weigh a fish?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

Can you divide the below-given shape into four equal and identical pieces?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?