Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

What is always in front of you but can’t be seen?

What makes this number unique: 8,549,176,320?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

What is black when you buy it, red when you use it, and gray when you throw it away?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

What begins with T, ends with T, and has T in it?