People put me on the table and cut me but do not eat me. What am I?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

Mr. Buttons was all set to go to the village of Buttonland to meet his friend. So, he packed his bags and left for the village at 5 in the morning. Upon travelling on a road for miles, he came across a point where the road diverged into two. He was confused on which road to take. He gazed around and he saw two owls sitting on a branch. He thought he could ask for directions for the village from the two owls. So he went to the tree. There he saw a sign which read, "One owl always lies, and one is always truthful. They both fly away if you ask them more than 1 question."
Mr. Buttons was caught in the dilemma of what to ask? And from which owl to ask, since he only had one question. What should Mr. Buttons ask?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

Can you solve the below geography rebus by decoding the below rebus ?

Which flower has two lips?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

The dirtier I get, the whiter I look. Who am I?