How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

Keyboard words are not in alphabetical order, Why?

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.

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

Make a sentence consisting of three words that have the whole alphabet.

What has a ring but no finger?