How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What is the word or phrase?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

A convention is held where all the big logicians are summoned. The master places a band on everyone's forehead. Now all of them can see others bands but can't see his own. Then they are told that there are different colours of bands. All the logicians sit in circle and they are further explained that a bell will ring at regular intervals. The moment when a logician knew the colour of band on his forehead, he will leave at the next bell. If anyone leaves at the wrong bell, he will be disqualified.

The master assures the logicians that the puzzle will not be impossible for anyone of them. How will the logicians manage ?

A father's child, a mother's child, yet no one's son.

Who am I?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Can you replace the question mark with the correct number in the below table sequence?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?