How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

What does this simple rebus mean?

It belongs to you, but other people use it more than you do. What is it?

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

My location can be determined by the below rebus.
So where am i ?

In the given picture, in how many ways can you read the word "Tiger"?

Find the last number in the series below:

voN luJ yaM raM ---