What is both possible and impossible at the same time?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

How can you take 2 from 5 and leave 4?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

A research team went to a village somewhere between the jungles of Africa. Luckily for them, they reached the day when quite an interesting custom was to be performed. The custom was performed once a year as they confirmed and was performed in order to collect the taxes from every male of the region.

The taxes were to be paid in the form of grains. Everyone must pay pounds of grain equaling his respective age. This means a 20-year-old will have to pay 20 pounds of grain and a 30-year-old will pay 30 pounds of grain and so on.

The chief who collects the tax has 7 weights and a large 2-pan scale to weigh. But there is another custom that the chief can weigh only three of the seven weights.

Can you find out the weights of the seven weights? Also, what is the maximum age of the man that can be weighed for the payment of taxes?

Can you replace the question mark with the correct number in the below table sequence?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?