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

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

I have branches, but no fruit, trunk or leaves. What am I?

Which word does the below Plexor means ?

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

In the addition below, all digits have been replaced by letters.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?