You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

The dirtier I get, the whiter I look. Who am I?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

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

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

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

What is the Surname of Barbie Doll?