How can you make number one disappear by adding something to it?

Can it be possible to build a house that has all its four walls facing towards the South?

What has many keys but can’t open a single lock?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

I have no life, but I can die. What am I?

Can you replace the question mark with the correct number?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

What is so fragile that saying its name breaks it?

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?