Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

What word begins and ends with an E, but has only one letter?

Spot what is wrong here in below Picture?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

What does this say?

XLR8

What does does this rebus picture means ?

What can you deduce from the following BrainBat?

CRY
LMKI

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?