Which is faster, Heat or Cold ? Explain.

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

What does the below rebus riddle means?

Can you find a five letter word that is left with only two letters if one is removed?

How can one talk without saying a single word?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Through your logical capabilities, can you make 7 an even?

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

Why do people go to bed?

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?