A convention is held where all the big logicians are summoned. The master places a band on everyone's forehead. Now all of them can see others bands but can't see his own. Then they are told that there are different colours of bands. All the logicians sit in circle and they are further explained that a bell will ring at regular intervals. The moment when a logician knew the colour of band on his forehead, he will leave at the next bell. If anyone leaves at the wrong bell, he will be disqualified.

The master assures the logicians that the puzzle will not be impossible for anyone of them. How will the logicians manage ?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

What is the centre of gravity?

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

Which five letter word can be added at the end of below word to form a
valid word?

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What number do you get when you multiply all of the numbers on a telephone's number pad?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Can you place six X (crosses) in below board without making three in a row in any way ?

What does the below mathematical rebus mean?