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

Why is a river so rich ?

What does below rebus means ?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

What is black when you buy it, red when you use it, and gray when you throw it away?

How can you take 2 from 5 and leave 4?

Using Only Five 5's and any mathematical operator make sum as 37

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Why do we preferably have round manhole covers and not square ones?

What number comes next in the series?

5 15 5 18 5 24 14 20 _