I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

What kind of storm is always in a rush?

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?

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?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

Why do you find that most of the buildings are deprived of the 13th floor?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Using Only Five 5's and any mathematical operator make sum as 37

Solve this riddle by finding the odd one out from the rest.

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?