Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

What has hands, but can’t clap?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Count the number of balls in picture below:

What is the centre of gravity?

Be active and find the killer in the picture Riddle below.

The dirtier I get, the whiter I look. Who am I?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

What kind of band never plays music?

Count the number of lines in the image below ?