An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

What is the word or phrase below?
R | E | A | D

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Why Wine Glass Stem is so long?

What does this rebus picture identify?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

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

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?