In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

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?

What does a man do only once in his lifetime, but women do once a year after they are 29?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Move three sticks of the spiral below to form a square.

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

What word is represented by this rebus?

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 ()

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

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes