Hi...
I weight 65 and I really want to lose 10 kg so I would be in my normal weight its really annoying me and I would like to lose 10 kg in 3 weeks can anyone please help me...

It is NOT possible to lose 10 Kg in that time frame.

You'll need to reduce your calorific intake and increase your aerobic activity.
(Less food more exercise)

10 kg in 3 weeks would require a high risk crash diet. 10kg overweight isn't so bad you need that amount of weight loss in that time.

You will only hurt yourself trying to do 10 in three weeks,

So much is what life style do you live.

Cut out all fast food, cut out processed and most canned foods, eat all fresh veggies and smaller amounts of meat. Eat well balanced meals.

Start walking a few miles a day, and/or ride a bike for a hour or so a day.

Get active.

Over a few months the weight will come off.