Allen was in the process of sprucing up his large backyard by planting trees, when he came to a tough decision. He had already planted the following types of trees: Khejri, Himalayan Pine, Maple, Llala Palm, and Agave Cactus, when he noticed that he could only plant one more. Given the trees that he had already planted, which of the following type would he choose?

Hard Quandong
Chinese Fir
Eucalyptus
Ulmo
Wild Olive
...

The freezing point of pure water is 32 degrees Fahrenheit (0 degrees Celsius). However, by simply adding a common household ingredient, you then can easily cool the water 20 degrees past the freezing point, and still keep it in liquid form.

How is this possible?

A man wanted to encrypt his password but he needed to do it in a way so that he could remember it. His password is 7 characters long. The password consists of letters and numbers only (no symbols like ! or <). In order to remember it he wrote down "You force heaven to be empty" Can you guess what his password is?

Start with a 6-letter word. Replace one letter to find the next word. No word is repeated in the trip until we are back to where we started. Clues are given along the way.

1. block and tackle
2.
3. recycled glass
4.
5. decorative moulding
6.
7. online purchase software
8.
9. paid a visit
10.
11. hauled
12 (we are back !)

Take the list of words below and arrange them into 3 sentences that all have something in common. Each word is only used once each time they appear in the list. ('A' can be used 4 times as it's in the list 4 times.) Punctuation is not an issue in this teaser.

A, A, A, A, ANIMALS, BAR, BAT, DAN, DROOP, I, I, IN, IN, IS, IT, NET, OR, POOR, SAW, SLAM, TEN, WAS

What are the sentences and what do they have in common?

Six words have had their weather terms removed. The weather terms have been placed into Group A. The remaining letters of each word have been placed into Group B. Your task is to reconstitute the words by merging each weather term with the proper set of letters. Other than merging the two groups together, there is no rearranging of the letters. Example: sand + pne = spanned (SpANneD).

Group A: cloud, hail, rain, sleet, storm, wind
Group...