John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

The more it dries, the wetter it becomes. Can you tell what it is?

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

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

What has a ring but no finger?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?