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?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

What does this mean?

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I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

What does this rebus puzzle means ?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

What goes up but never comes down?

What do you see in the image below

What part of the chicken has the most feathers?