Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

I look at you, you look at me I raise my right, you raise your left. What am I?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Can you count the number of triangles in the given figure?

I look at you, you look at me, I raise my right, you raise your left. What am I?

If six children and two dogs were under an umbrella, how come none of them got wet?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

One night, a woman receives a call from the police. They tell her that her husband was murdered and that she should come to the crime scene as soon as possible. The woman drops the phone, shocked, and drives 20 minutes to the crime scene. As soon as she reaches the crime scene, the police arrest her and she is convicted of murder. How do the police know she committed the crime?