You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

A wealthy man lives alone in a small cottage. Being partially handicapped he had everything delivered to his cottage. The mailman was delivering a letter one Thursday when he noticed that the front door was ajar. Through the opening he could see the man's body lying in a pool of dried blood. When a police officer arrived he surveyed the scene. On the porch were two bottles of warm milk, Monday's newspaper, a catalog, flyers, and unopened mail. The police officer suspects it was foul play. Who does he suspect and why?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

What does this rebus means ?

Buy me, smell me or deliver me, I do not change.

Who am I?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

The answer I give is yes, but what I mean is no. What was the question?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

A car is crossing a 20 km-long bridge. The bridge can support at most 1500kg of weight over it. If somehow, the weight on the bridge becomes more than that, it will break.

Now, the weight of the car is exactly 1500kg. At the midway, a bird comes and sits on the roof of the car. This bird weighs exactly 200 grams.
Can you tell if the bridge breaks at this point or not?