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?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

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

One day Jenifer meets the Lion and the Tiger in the Forest of Forgetfulness. She knows that the Lion lies on Mondays, Tuesdays, and Wednesdays, and tells the truth on the other days of the week. The Tiger, on the other hand, lies on Thursdays, Fridays, and Saturdays, but tells the truth on the other days of the week. Now they make the following statements to Jenifer:

Lion: Yesterday was one of my lying days.

Tiger: Yesterday was one of my lying days too.

What day is it?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Name a key which is hardest to turn.

Be active and find the killer in the picture Riddle below.