Good Riddles

Question: Why are pianos hard to open?

Question: What did the tie say to the hat?

Question: If green means go, yellow means slow down or caution, and red means stop. Why can't traffic lights go when they turn to green?

Question: I am full of light but left in the dark. I have a temper that pushes my single sibling. I have many friends very far away and I disappear in the light when it is my sibling's turn to push me back. What am I?

Question: There was a man who wanted to jump in a pool but there was a formation of ice on the surface of the water.Sunlight gleamed and reflected onto the surroundings.You have rope and a deluxe collection of chocolates.A lifeguard is sitting asleep nearby and has a cellphone in his pocket.There are three kids sitting gloomily at the edge of the pool.There is 10 mins for the pool to close.A family nearby is having a picnic with a lot of chili to spare and there are blue fishes in a nearby lake.The temperature is -10C if the man does not heat himself in 3 mins, he will die of hypothermia.How does the man get into the water?