If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

What do you think with the below Picture ?

Can you find out the remainder when 3^300 is divided by 5?

Give it food and it will live; give it water and it will die.

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

Why do you find that most of the buildings are deprived of the 13th floor?

There are five people. One of them shot and killed one of the other five.
We know following clues:
1. Dan ran in the NY City Marathon yesterday with one of the innocent men.
2. Mike consider being a farmer before he moved to the city.
3. Jeff is a top notch computer consultant and wants to install Ben new computer next week.
4. The murderer had his leg amputated last month.
5. Ben met Jack for the first time six months ago.
6. Jack has been in seclusion since the crime.
7. Dan used to drink heavily.
8. Ben and Jeff built their last computers together.
9. The murderer is Jack's brother. They grew up together in Seattle.

Consider yourself to be a famous detective "Sherlock Homles", Can you find the killer?

Can you find the key in the picture below?

What month of the year has 28 days?