I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

What does this simple rebus mean?

What happened when the wheel was invented?

Rearrange the letters in "new door" to make one word.

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

By what process could you make a 'Tea-Table' into food?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

A man dies of old age on his 25 birthday. How is this possible?

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?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?