Can you identify if it's a murder or a suicide ?

Can you count the number of triangles inside a triangle?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

I know a nine-letter word having only one vowel.
Do you ?

How do you go from 98 to 720 using just one letter?

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