Solution:

She is near the trunk of the tree as shown below.

Solution:

Terry was in the lift.

Solution:

They were facing each other and not back to back.

Solution:

abracadabra

Solution:

Stationary and Stationery

Solution:

CAT

Explanation:
1. LOCATE
2. EDUCATE
3. CATER
4. CATTLE

Solution:

Not sure.

John Brunner always sneezes before the rain, but it was not mentioned that if Brunner sneezes, it will rain.

Solution:

4 Pounds

Explanation
90% of water = 18 pounds
10% of carbon = 2 pounds

Now,
Earlier 10% of carbon is now contributing 50% weight = 2pounds
Therefore weight of water is also contributing 50% weight = 2pounds

Sum = 4 pounds

Solution:

707

Explanation:
Square of 707 = 70499849
4+9+9+8+4+9 = 43

Solution:

21982030

Explanation:
Next number formed is (number * (number-2)) - number;
i.e
(5 * 3) - 5 => 10
(10 * 8) - 10 => 70
(70 * 68) - 70 => 4690
(4690 * 4688) - 4690 => 21982030