I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

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?

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?

Spot what is wrong here in below Picture?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

Count the Triangle in the figure given below:

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

Which number should replace the question mark?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?