Circles with Straight Lines

Using six contiguous straight lines, connect all of the sixteen circles shown below.

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Connect With Squres

How many squares can you create in this figure by connecting any 4 dots (the corners of a square must lie upon a grid dot)

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Who r telling Truth&Who done it?

Melissa and Jessica were working on the computer along with their friends Sandy and Nicole.  Suddenly, I heard a crash and then lots of shouts.  I rushed in to find out what was going on, finding the computer monitor on the ground, surrounded with broken glass!  Sandy and Jessica spoke almost at the same time: 

Jessica saying, "It wasn't me!"
Sandy saying, "It was Nicole!"
Melissa yelled, "No, it was Sandy!"
With a pretty straight face Nicole said, "Sandy's a liar." 

Only one of them was telling the truth, so who knocked over the monitor?

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Find out Address

1. I live on Sunset Boulevard, where there are 6 houses on my side of the block. 
2. The house numbers are consecutive even numbers.  
3. The sum of all 6 house numbers is 8790.  
4. You don't know which block I live on, and it's a long street, but I will tell you that I live in the lowest number on my side of the block.

  What's my address? 

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Weight of Marbels

Given twelve marbles that are identical in size, shape, and color, determine which single marble is heavier in weight than the others.  You are supplied with a balance and must conclude your determination in three weightings.

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Logical Poem Puzzle

The following verse spells out a word, letter by letter.  "My first" refers to the word's first letter, and so on.  

What's the word that this verse describes?

My first is in fish but not in snail
My second in rabbit but not in tail
My third in up but not down
My fourth in tiara not in crown
My fifth in tree you plainly see
My whole a food for you and me

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True Statements

A. The number of false statements here is one. 

B. The number of false statements here is two. 

C. The number of false statements here is three. 

D. The number of false statements here is four. 

Which of the above statements is true? 

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