How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

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

Can you replace the question mark with the correct number in the below table sequence?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

There was a kingdom in which the king had no heir to take over his thrown. Even the queen was dead and he himself was on the verge of dying. He thought about it and then summoned all of the teenagers. He gave one seed each to all of them and asked them to grow the plant. He announced that the one with the most beautiful plant will become the king/queen of the empire after the death of the king.

After a month, all of them were called. The king looked at all of the plants but announced the girl with an empty pot as the queen of the empire. Why?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What brings you down but never up?