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Q:

Logical puzzle

You work at a fruit factory.
There are 3 crates in front of you. One crate contains only apples. One crate contains only oranges. The other crate contains both apples and oranges. And each crate is labeled. One reads "apples", one reads "oranges", and one reads "apples and oranges". But the labeling machine has gone crazy and is now labeling all boxes incorrectly. If you can only take out and look at just one of the pieces of fruit from just one of the crates, how can you label ALL of the crates correctly?

Answer

Our solution:


Take a piece of fruit from the "apples and oranges" crate. If it's an apple then you know that is the "apples" crate since ALL THE CRATES ARE LABELED INCORRECTLY. This means the crate marked "apples" must be "oranges" and the crate marked "oranges" must be "apples and oranges".

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Subject: Logic Puzzles

Q:

Riddle

How can you add eight 8's to get the number 1,000? (only use addition)

Answer

The key to this math riddle is realizing that the one place must be zero.
888 +88 +8 +8 +8 =1,000

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Subject: Math Puzzles

Q:

Solve the following puzzle

You are going to visit your grandmother on Mother's day. You want to give her two cakes. However, to get to her house you must cross seven bridges. At each bridge is a troll who demands ½ of all of your cakes as the price to pass. However, this troll, being a nice troll, feels bad and gives you back 1 of the cakes that he took.

         The puzzle to solve: How many cakes must you leave with to be able to give your grandmother 2 cakes

Answer

Do the math and you will see that this puzzle is based on the fact taht (2)=1 and 1+1=2

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Subject: Math Puzzles

Q:

Puzzle : Bridge Crossing

Jim, Jeanne, Louis and Anne wants to cross the bridge at night. They have only one torch light with them. Only two can cross the bridge at a time. They need torch light to cross the bridge. Each of them walks at a different speed. Jim needs 1 minute, Jeanne needs 2 minutes, Louis needs 5 minutes and Anne needs 10 minutes. A pair must walk together at the rate of the slower person. How these people can cross the bridge within 17 minutes?

Answer

First Jim and Jeanne walks across the bridge, it takes 2 minutes. 


Jim walks back with the torch light, which takes 1 minute. 


Then Louis and Anne walk on the bridge, which takes 10 minutes.


Jeanne comes back with the torch light, it takes 2 minutes.


Finally Jim and Jeanne walks across the bridge, which takes 2 minutes.


Total = 2 + 1 + 10 + 2 + 2 = 17 minutes

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Subject: Math Puzzles

Q:

The first President of USA was

Answer

George Washington

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Subject: World History

Q:

This statesman,politican,scholar,inventor,and one of early presidents of USA invented the swivel chair,the spherical sundial,the moldboard plow,and the cipher wheel.

A) George Washington B) Alexander Hamilton
C) John Adams D) Thomas Jefferson
 
Answer & Explanation Answer: D) Thomas Jefferson

Explanation:

 Thomas Jefferson (April 13, 1743 – July 4, 1826) was the third President of the United States (1801-1809) and the principal author of the Declaration of Independence (1776).

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Filed Under: Inventions

Q:

What does airbag, used for safety of car driver, contain?

A) Sodium bicarbonate B) Sodium azide
C) Sodium nitrite D) Sodium peroxide
 
Answer & Explanation Answer: B) Sodium azide

Explanation:
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Filed Under: General Science

Q:

Which one of the following types of waves are used in a night vision apparatus?

A) Radio waves B) Microwaves
C) Infra-red waves D) None of the above
 
Answer & Explanation Answer: C) Infra-red waves

Explanation:
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Filed Under: General Science