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

Count the squares in the matchstick puzzle below?

John was piloting a plane behind a car but was never able to overtake it. Why?

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

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

With the help clues provided in the image, can you find the 5 digit key?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?