The Mirror Mystery

Open me, and you can’t see me without a mirror. Close me, and you can’t see me at all.
What am I?

Your eye.

The Coffee or Soda Logic Puzzle

George, Helen, and Steve are drinking coffee. Bert, Karen, and Dave are drinking soda. Using logic, is Elizabeth drinking coffee or soda?

Answer:
Elizabeth is drinking coffee.

Explanation:
The people drinking coffee have two e’s in their names: George, Helen, and Steve. The people drinking soda do not: Bert, Karen, and Dave. Since Elizabeth has two e’s in her name, she is drinking coffee.

The Age Puzzle

I am four times as old as my daughter. In 20 years, I shall be twice as old as her. How old are we now?

The daughter is 10 years old, and the parent is 40 years old.

Solution:

Let the daughter’s age be x, and the parent’s age be 4x.
In 20 years:

The daughter’s age will be x + 20.
The parent’s age will be 4x + 20.

The parent will be twice as old as the daughter:
4x + 20 = 2(x + 20)

Simplify:
4x + 20 = 2x + 40
4x – 2x = 40 – 20
2x = 20
x = 10

So, the daughter is 10 years old, and the parent is 4 × 10 = 40 years old.

The Time-Twist Puzzle

Two girls have the same parents and were born at the same hour on the same day of the same month, but they are not twins. How can this be possible?

They were born in different years.

The Chronological Mystery

Where is the only place where today comes before yesterday?
What am I?

The dictionary.

The Pronunciation Puzzle

What word is pronounced the same if you take away four of its five letters?
What am I?

Queue

The Invisible Power

I am given, taken, passed, and shared. You can’t hold me, but I can make you feel powerful. What am I?

Knowledge.

The Connection Riddle

I connect two people but touch only one. What am I?

A wedding ring.

The Hidden Message Puzzle

I start with an “e” and end with an “e.” I contain only one letter. What am I?

An envelope.

The Mysterious Piece

I have hands but cannot touch. I have a face but do not see. What am I?

A clock.