A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Can you spot the man between the coffee bean in the picture below ?

What work can one never finish?

Find the hidden panda in the image below.

What does below Rebus mean ?

esgg sgeg gegs gsge

There is something which you can be arrested for attempting but not for successfully completing.

Which English verb becomes past tense just by rearranging the letters?