There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Which digit occurred maximum times between the number 1 and 1000?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

You see me once in June, twice in November, and not at all in May. What am I?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What is so fragile that saying its name breaks it?

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

You are given 16 witch hats. The hats are divided in four different colours – red, blue, green and yellow. Every colour has been assigned to four hats. Now each of the hat will be glued with a label of an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’. But you can label one sign only once on one colour. In such an arrangement, the hats can be uniquely defined by its colour and symbol.

Can you arrange all the 16 hats in a 4x4 grid in a fashion that no two rows and columns have a repetition of colour or sign?
We have arranged four hats in the below picture to assist you.