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?

I have branches, but no fruit, trunk or leaves. What am I?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

Which is the smallest number that you can write using all the vowels exactly once?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

By what process could you make a 'Tea-Table' into food?