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Complete the missing letters of the given word.

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Three friends named Mr. Black, Mr. Yellow and Mr. Green enter a pub on a weekend night. They are wearing either a Black, Yellow or Green shirt.

Mr. Yellow says to them, 'Did you notice that we all are wearing different color shirts than our names?'

To this, the man who was wearing the Green shirt said. 'Wow, thats right.'

Can you identify who is wearing which colour shirt ?

From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

What has no start, end, or centre?

Can you divide the below-given shape into four equal and identical pieces?

Can you guess the name of the month by looking the below rebus ?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

If 21x = 79x, what is the value of x?

Identify the hidden meaning behind this picture?