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?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

What is the difference between a jeweller and a jailer?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

What part of the chicken has the most feathers?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

What kind of band never plays music?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?