You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

How can one talk without saying a single word?

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

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

Can it be possible to build a house that has all its four walls facing towards the South?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

Can you count the number of quadrilaterals in the picture below?