Question 1:

If after launch 1 Combi coin equals a complete set (100%) of the investment into top 30 coins equally distributed with the weight of 1/30, then I have one question on that.

White paper:
"For 10 USD you will receive 1 CombiCoin
and 1 TRIA Token. Each CombiCoin, is 100% backed by the current top 30 of cryptocurrency."

For funding with 10 USD one gets 1 CombiCoin (and 1 TriaToken).

(BTC price, ETH price, ... Coin# 30 price) / 30 = 1 Combicoin (which is worth more than 10 USD at any current point).

How can someone get 1 CombiCoin for 10 USD, if that Coin's worth is way higher at the launch of this coin on major exchanges?

It would be as if free money is being given away, which does not circulate.
In theory if everyone would turn his CombiCoin into USD after launch for the price of 1 CombiCoin on exchanges, this would not work.

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Question 2:

People have written that with the current low prices of most top coins CombiCoin would have a head start. Inthe white paper timeline is says for January 2018 "CombiCoin launched at major exchanges". Does that mean CombiCoin launches first time in 2018 on exchanges, or is this a general statement that CombiCoin launched at quite a few major exchanges "so far"?