I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

What kind of band never plays music?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT