Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

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

When it's bad luck to meet a black cat?

What's the best place to go shopping in the ocean?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

One fine day, an intellectual man came to the emperor's court with the aim of testing Birbal's wittiness. In order to do this, he challenged Birbal to answer his question and hence prove that he was as intelligent and witty as he was said to be.
He asked Birbal, Do you want me to ask one difficult question or a hundred easy ones?
Since both Akbar and Birbal had had a tough day and were eager to leave, Birbal hastily told the intellectual to ask him a single difficult question.
Intellectual: OK. Tell me what came first into the world, the egg or the chicken?
Of course, the chicken, Birbal replied with a smile.
This time with a note of victory in his voice, the intellectual asked Birbal, How will you demonstrate that?
What did Birbal say?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Can you tell a 3D object that has just two surfaces?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?