Riddle 8 - The Egg Problem

People are sitting on a breakfast table. You pick up a boiled egg (not shelled) and ask your mates to stand it upright. Everybody tries it but cannot do it. You take the egg back from them and stand it upright. How?
[See the answer on Riddles Answers 8]

Riddle 9 - Quarter Problem

Take a quarter and dollar bill. Can you balance the quarter on the edge of the dollar bill?
[See the answer on Riddles Answers 9]

Riddle 10 - Ten Pennies Problem

There are ten pennies arranged like this. Now you have to move only three pennies to make the arrangement of the pennies in the opposite direction.

O
       O
O             O
       O             O   
O             O
        O
O

[See the answer on Riddles Answers 10]

Riddle 11 - Six Glasses Problem

There are six glasses. Three are half-filled with water and three are empty. First arrange three half-filled with water and then keep three empty glasses after them in one line. Now move only one glass so that no water filled glass is near water filled glass; and no empty glass is with empty glass.
[See the answer on Riddles Answers 11]

Riddle 12 - Problem of Separation

By mistake some salt, some iron powder, some sand and some saw dust are mixed up. Can you separate them?
[See the answer on Riddles Answers 12]

Riddle 13 - Problem of Transportation

A man has a lion, a goat and a bundle of grass. He is going to market. On the way there is a river which he has to cross. Obviously he has to take those things also with him. Now there is boat which can carry only one thing at a time excluding the boatman. How that man should transport them across the river?
[See the answer on Riddles Answers 13]

Riddle 14 - Problem of Tide 

A boat has a ladder that has six rungs, towards outside the boat. Each rung is one foot apart. The bottom rung is one foot above the water. The tide rises at 12 inches every 15 minutes. High tide peaks in one hour. When the tide is at its highest, how many rungs will be under water?
[See the answer on Riddles Answers 14]