What Time Should the last watch show in the below figure?

How can you leave a room with two legs and return with six legs?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

Can anyone tell me a word in the English dictionary which has a silent 'z'?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?