1: You are the bus driver, there are 36 people on the bus 3 get on 4 get off at the first stop, at the second stop 10 people get on 35 get off, at third stop 2 people get on no one gets off. How old is the bus driver?

2:I Have Keys But No Locks. I Have A Space But No Room. You Can Enter, But Can’t Go Outside. What Am I?
3:I Have Two Coins That Add Up To 30 Cents. One Is Not A Nickel. What Are The Two Coins?
4:Mary's Mother Had Four Children; April, May, And June Were The First Three. What's The Name Of The 4th Child?

These are so simple but hard thanks for reading!

1: To determine the age of the bus driver, we need to break down each step of the question.

First, there are 36 people on the bus.
Then, 3 people get on the bus, so the total number of people becomes 36 + 3 = 39.
Next, 4 people get off at the first stop, so the total number of people becomes 39 - 4 = 35.
At the second stop, 10 people get on and 35 people get off. This gives us 35 + 10 - 35 = 10 people left on the bus.
Finally, 2 people get on at the third stop, so the total number becomes 10 + 2 = 12.

Now, the question involves the age of the bus driver, but there is no direct information or logical connection given between the number of people on the bus and the age of the bus driver. Therefore, it's not possible to determine the age of the bus driver based on the information given.

2: The answer to this riddle is "a keyboard."

A keyboard has keys but no locks. It has a physical space, but no room in the sense of a building or enclosed area. You can enter data or input on a keyboard, but you cannot physically go outside using a keyboard.

3: To solve this riddle, we need to find two coins that add up to 30 cents, but one of the coins is not a nickel.

Let's consider the possible coin combinations:
- A quarter (25 cents) and a nickel (5 cents) add up to 30 cents. However, since one of the coins must not be a nickel, this combination doesn't meet the condition.
- A dime (10 cents) and three nickels (15 cents) also add up to 30 cents, but again, one of the coins should not be a nickel.

Therefore, the two coins that meet the condition are a dime (10 cents) and a 20-cent coin (such as a 20-cent Euro or a 20-centavo coin from some countries).

4: The name of the fourth child mentioned in the riddle is Mary.

The question states "Mary's Mother had four children," so Mary is the name of one of the four children. The riddle then goes on to mention three other children - April, May, and June - but the question is asking for the name of the fourth child, which is Mary.