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

I don't get anymore wetter, no matter how much rain falls on me.

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

who is silent in the parliament?

No matter how little or how much you use me, you change me every month. What am I?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

What jumps when it walks and sits when it stands?

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

There is a place where if I stand up straight, I will still be considered sideways.

What goes up but never comes down?