You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

Can you find out the remainder when 3^300 is divided by 5?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

What's the only room from which no one can enter or leave

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

Which five letter word can be added at the end of below word to form a
valid word?

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Here is a mathematical expression that also secretly tells a movie name. What movie is that?