I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

Can you move 2 matchsticks to form four equal sized squares.

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Find the value of "?" in the ball picture Riddle below:

What came first, the chicken or the egg?

Name a key which is hardest to turn.

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()