Why do we preferably have round manhole covers and not square ones?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

What has 88 keys?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

A California farmer owns a beautiful pear tree. He supplies the fruit to a nearby grocery store. The store owner calls the farmer to see how much fruit is available for him to buy. The farmer knows the main trunk has 24 branches. Each branch has exactly 12 boughs and each bough has exactly 6 twigs. Since each twig bears one piece of fruit, how many plums will the farmer be able to deliver?

Who can jump higher than a Mountain?

What has many teeth, but cannot bite?

You can see it everyday, But cannot touch it at will. What is it?