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

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

I have an apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)



Can you tell me , on what week does my tree is half covered with apples ?

You can see three almost identical images below. Can you spot the odd one out from them?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Which number should replace the question mark?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

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?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?