Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

Make a sentence consisting of three words that have the whole alphabet.

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

Find the next number in the sequence

5 12 24 36 ?

O_er_t_o_

Complete the missing letters of the given word.

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

what's the probability of getting a king or a queen from a pack of 52 cards?

There is a circular car race track of 10km. There are two cars, Car A and Car B. And they are at the exact opposite end to each other. At Time T(0), Both cars move toward each other at a constant speed of 100 m/seconds. As we know both cars are at the same speed they will always be the exact opposite to each other.
Note, at the center, there is a bug which starts flying towards Car A at time T(0). When the bug reaches car B, it turns back and starts moving towards the car A. The speed of bug is 1m/second. After 5 hours all three stop moving.
What is the total distance covered by the bug?

Forwards I am heavy, backward I am not. What am I?