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?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Can you guess the name of the month by looking the below rebus ?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?