Which five letter word can be added at the end of below word to form a
valid word?

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Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

Forwards I am heavy, backward I am not. What am I?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?