# Question :

You are blindfolded and 10 coins are place in front of you on table.

You are allowed to touch the coins, but can’t tell which way up they are by feel.

You are told that there are 5 coins head up, and 5 coins tails up but not which ones…

You are blindfolded and 10 coins are place in front of you on table.

You are allowed to touch the coins, but can’t tell which way up they are by feel.

You are told that there are 5 coins head up, and 5 coins tails up but not which ones…

There are three ants on a triangle, one at each corner.

At a given moment in time, they all set off for a corner at random.

What is the probability that they don’t collide?

Let the three ants are a, b, c.

There are two cases when they will not collide…

You are at the bottom of the elevator shaft of a 100 story building.

You see 21 wires labelled 1 2 3 … 21.

The wires go up to the 100th floor where the ends are labelled A B C … U, but you don’t know how they correspond to…

There is a building of 100 floors

If an egg drops from the Nth floor or above it will break. If it’s dropped from any floor below, it will not break. You’re given 2 eggs. Find N, while minimizing the number of drops for the worst case.

These are very…

Suppose that there is a unit square. There are four cats sitting at the four different corners of the square. Each of those cats start chasing the other cat in the clockwise direction. The speed of the cats are same and constant and they continuously change their direction in a…

In year 2001 on October 2, 2001, the date in MMDDYYYY format was a palindrome (same forwards as backwards).

`10/02/2001 -> "10022001"`

When was the last date before 2001 that this occurred on?

Respond in MMDDYYYY format

One year can have only one palindrome as the year fixes the month…