An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

If eleven plus two equals one, what does nine plus five equal?

How many triangles are there on the puzzle below?

What breaks yet never falls, and what falls yet never breaks?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

What part of the chicken has the most feathers?