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 ?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

What makes this number unique: 8,549,176,320?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

why number 8549176320 is one of a kind?

In the picture given below, can you find out which digit will take place of the question mark?

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?