I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

The centre of the third figure is empty. What digit should fit inside?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

What Deficiency does the below rebus represent?

VIT_MIN

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Can you place six X (crosses) in below board without making three in a row in any way ?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?