What is always in front of you but can’t be seen?

I have teeth but i don't bite. Who Am I ?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

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

Can you place six X (crosses) in below board without making three in a row in any way ?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

A sundial has the fewest moving parts of any timepiece. Which has the most?

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?