During which month do people sleep the least?

What's a single-digit number with no value?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

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

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

I know a nine-letter word having only one vowel.
Do you ?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?